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Versión actual por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for 6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 1000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it. You may be able to find the specifications for it by searching online for the number so that you can check if it is OK or not at the given temperature.
 
[image|2367022]
 
(click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the service data sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
It shows that the temperature should be between -13C to -16C when the room ambient is between 21C to 32C. at Setting #1. (approximate Celsius temperature values converted from the Fahrenheit temps shown on data sheet)
 
Other than this it doesn’t give much more information apart from a very basic block diagram of the freezer components and how they’re connected with each other. The thermistor (aka temperature sensor) is also shown, along with a 9V battery??, connected to the control board.
 
I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking itit to see what voltage it is or still is. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking itit to see what voltage it is or still is. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for 6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 1000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it. You may be able to find the specifications for it by searching online for the number so that you can check if it is OK or not at the given temperature.
 
[image|2367022]
 
(click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the service data sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
It shows that the temperature should be between -13C to -16C when the room ambient is between 21C to 32C. at Setting #1. (approximate Celsius temperature values converted from the Fahrenheit temps shown on data sheet)
It shows that the temperature should be between -13C to -16C when the room ambient is between 21C to 32C. at Setting #1. (approximate Celsius temperature values converted from the Fahrenheit temps shown on data sheet)
 
Other than this it doesn’t give much more information apart from a very basic block diagram of the freezer components and how they’re connected with each other. The thermistor (aka temperature sensor) is also shown, along with a 9V battery??, connected to the control board.
 
I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for 6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 1000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it. You may be able to find the specifications for it by searching online for the number so that you can check if it is OK or not at the given temperature.
 
[image|2367022]
 
(click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the service data sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
It shows that the temperature should be between -13C to -16C when the room ambient is between 21C to 32C. at Setting #1. (approximate tempraturetemperature values converted from the Fahrenheit temps shownshown on data sheet)
It shows that the temperature should be between -13C to -16C when the room ambient is between 21C to 32C. at Setting #1. (approximate tempraturetemperature values converted from the Fahrenheit temps shownshown on data sheet)
 
Other than this it doesn’t give much more information apart from a very basic block diagram of the freezer components and how they’re connected with each other. The thermistor (aka temperature sensor) is also shown, along with a 9V battery??, connected to the control board.
 
I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for 6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 1000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it. You may be able to find the specifications for it by searching online for the number so that you can check if it is OK or not at the given temperature.
 
[image|2367022]
 
(click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the service data sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
It shows that the temperature should be between -13C to -16C when the room ambient is between 21C to 32C. at Setting #1. (approximate temprature values converted from the Fahrenheit temps shown)
It shows that the temperature should be between -13C to -16C when the room ambient is between 21C to 32C. at Setting #1. (approximate temprature values converted from the Fahrenheit temps shown)
 
Other than this it doesn’t give much more information apart from a very basic block diagram of the freezer components and how they’re connected with each other. The thermistor (aka temperature sensor) is also shown, along with a 9V battery??, connected to the control board.
 
I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for 6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 1000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it. You may be able to find the specifications for it by searching online for the number so that you can check if it is OK or not at the given temperature.
 
[image|2367022]
 
(click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the techservice data sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
Also according to the same parts supplier linked above the part number for the techservice data sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two thingsIt shows that show up. One is the thermistor (aka temperature sensor) butshould be between -13C to -16C when the other I thinkroom ambient is the more interestingbetween 21C to 32C. at Setting #1.
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two thingsIt shows that show up. One is the thermistor (aka temperature sensor) butshould be between -13C to -16C when the other I thinkroom ambient is the more interestingbetween 21C to 32C. at Setting #1.
 
It shows that thereOther than this it doesn’t give much more information apart from a very basic block diagram of the freezer components and how they’re connected with each other. The thermistor (aka temperature sensor) is also shown, along with a 9V batterybattery??, connected to the control board. I’ve

I’ve
never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
It shows that thereOther than this it doesn’t give much more information apart from a very basic block diagram of the freezer components and how they’re connected with each other. The thermistor (aka temperature sensor) is also shown, along with a 9V batterybattery??, connected to the control board. I’ve

I’ve
never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for 6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 1000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it. You may be able to find the specifications for it by searching online for the number so that you can check if it is OK or not at the given temperature.
Here’s an image showing the resistance chart for 6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 1000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it. You may be able to find the specifications for it by searching online for the number so that you can check if it is OK or not at the given temperature.
 
[image|2367022]
 
(click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the tech sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two things that show up. One is the thermistor (aka temperature sensor) but the other I think is the more interesting.
 
It shows that there is a 9V battery connected to the control board. I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for one thermistor model. As far as I know it is ''not'' the one used in your freezer6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 10001000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it.
Here’s an image showing the resistance chart for one thermistor model. As far as I know it is ''not'' the one used in your freezer6 different thermistor models. It is only to show you how its resistance changes with the temperature. The resistance values are in K Ohms i.e Ohms x 10001000. As far as I know they are ''not'' the ones used in your freezer, but I may be wrong. Check if the one in your freezer has any model or type information printed on it.
 
[image|2367022]
 
(click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the tech sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two things that show up. One is the thermistor (aka temperature sensor) but the other I think is the more interesting.
 
It shows that there is a 9V battery connected to the control board. I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.
 
Here’s an image showing the resistance chart for one thermistor model. As far as I know it is ''not'' the one used in your freezer. It is only to show you how its resistance changes with the temperature. [image|2367022] (clickThe resistance values are in K Ohms i.e Ohms x 1000

[image|2367022]

(click
on image to enlarge for better viewing)
Here’s an image showing the resistance chart for one thermistor model. As far as I know it is ''not'' the one used in your freezer. It is only to show you how its resistance changes with the temperature. [image|2367022] (clickThe resistance values are in K Ohms i.e Ohms x 1000

[image|2367022]

(click
on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the tech sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two things that show up. One is the thermistor (aka temperature sensor) but the other I think is the more interesting.
 
It shows that there is a 9V battery connected to the control board. I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.

Here’s an image showing the resistance chart for one thermistor model. As far as I know it is ''not'' the one used in your freezer. It is only to show you how its resistance changes with the temperature. [image|2367022] (click on image to enlarge for better viewing)
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK. The sensor appears to be a NTC type thermistor (Negative Temperature Co-efficient) which means that as the temperature goes up the electrical resistance value of the thermistor goes down. The resistance value of a thermistor over its designed operating temperature range is known so this is how the control board knows what the temperature is at any given temperature as the thermistor’s resistance will indicate this.

Here’s an image showing the resistance chart for one thermistor model. As far as I know it is ''not'' the one used in your freezer. It is only to show you how its resistance changes with the temperature. [image|2367022] (click on image to enlarge for better viewing)
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the tech sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two things that show up. One is the thermistor (aka temperature sensor) but the other I think is the more interesting.
 
It shows that there is a 9V battery connected to the control board. I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK.
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the tech sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two things that show up. One is the thermistor (aka temperature sensor) but the other I think is the more interesting.
 
It shows that there is a 9V battery connected to the control board. I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile also checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK.
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the system diagram parts list.
 
Also according to the same parts supplier linked above the part number for the tech sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two things that show up. One is the thermistor (aka temperature sensor) but the other I think is the more interesting.
 
It shows that there is a 9V battery connected to the control board. I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
 
=== Update (03/30/2021) ===
Hi,
 
Check if the [link|https://www.searspartsdirect.com/product/3n7ido42aw-0046-253/id-297018400|temperature sensor] is OK.
 
Unfortunately its location is not shown in the [link|https://www.searspartsdirect.com/model/4xx1av8oqo-000583/kenmore-elite-25326072101-upright-freezer-parts|parts diagrams] as it is shown as NI (not indicated) in the list.
 
Also according to the same parts supplier linked above the part number for the tech sheet is [link|http://manuals.frigidaire.com/prodinfo_pdf/StCloud/297079601.pdf|297079601].
 
Whilst it doesn’t give much information apart from a very basic block diagram of the freezer components and how they’re connected with each other, there are two things that show up. One is the thermistor (aka temperature sensor) but the other I think is the more interesting.
 
It shows that there is a 9V battery connected to the control board. I’ve never come across a battery in a refrigerator (or freezer) before but I was wondering if it is used to maintain the settings in the event of a power failure.
 
I know that this is the case in computers and when the battery gets low (or flat) it can cause all sorts of strange things to happen. So it may be worthwhile checking it. I don’t know whether it is a rechargeable or a non rechargeable but in either case they have a lifespan. Just a thought.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment e.g. from -22 to 2, and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment e.g. from -22 to 2, and the defrost heater is turned on to melt the ice build up on the evaporator unit. The temp will rise from -22 to 2. Really it should not rise above 0 C as you don’t want the frozen food to even begin to thaw.
 
When the set temp of the defrost thermostat (or sensor) has been reached e.g. 2i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
When the set temp of the defrost thermostat (or sensor) has been reached e.g. 2i.e. 0 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C. as you don’t want the frozen food to even begin to thaw.
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C. as you don’t want the frozen food to even begin to thaw.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
If so does altering the set temp from -18 alter the temperatures that you’re seeing e.g. set for -16 and check if the temperature changes correspondingly?
 
 
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment e.g. from -22 to 2, and the defrost heater is turned on to melt the ice build up on the evaporator unit.
 
When the set temp of the defrost thermostat (or sensor) has been reached e.g. 2 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C. as you don’t want the frozen food to even begin to thaw.
 
HaveHave you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?
HaveHave you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 centigrade again?
 
If so does altering the set temp from -18 alter the temperatures that you’re seeing e.g. set for -16 and check if the temperature changes correspondingly?
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error there?
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error there?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment e.g. from -22 to 2, and the defrost heater is turned on to melt the ice build up on the evaporator unit.
 
When the set temp of the defrost thermostat (or sensor) has been reached e.g. 2 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
 
-22 C is a bit cold so it may be a faulty temp sensor in the freezer. The same with the defrost sensor as it shouldn’t really go above 0 deg C. as you don’t want the frozen food to even begin to thaw.
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error in the display reading?

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from -22 to 2 and then back to -22 deg (centigrade?)centigrade again?
Do you mean that the temp goes from -22 to 2 and then back to -22 deg (centigrade?)centigrade again?
 
If so does altering the set temp from -18 alter the temperatures that you’re seeing e.g. set for -16 and check if the temperature changes correspondingly?
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error there?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment e.g. from -22 to 2, and the defrost heater is turned on to melt the ice build up on the evaporator unit.
 
When the set temp of the defrost thermostat (or sensor) has been reached e.g. 2 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from 2 to -22 deg (centigrade?)?
 
If so does altering the set temp from -18 alter the temperatures that you’re seeing e.g. set for -16 and check if the temperature changes correspondingly?
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error there?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartmentcompartment e.g. from -22 to 2, and the defrost heater is turned on to melt the ice build up on the evaporator unit.
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartmentcompartment e.g. from -22 to 2, and the defrost heater is turned on to melt the ice build up on the evaporator unit.
 
When the set temp of the defrost thermostat (or sensor) has been reached e.g. 2 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.
When the set temp of the defrost thermostat (or sensor) has been reached e.g. 2 deg., it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temp back down again to the set temperature. e.g. -22deg.

Estatus:

open

Editado por: jayeff ,

Texto:

Hi ,
 
What is the make and model number of the freezer?
 
Do you mean that the temp goes from 2 to -22 deg (centigrade?)?
 
If so does altering the set temp from -18 alter the temperatures that you’re seeing e.g. set for -16 and check if the temperature changes correspondingly?
 
Have you tried using a thermometer to check the temperature in the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error there?
 
How often does this happen?
 
If only once every 8-10 hours it may just be the defrost cycle in operation
 
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment, and the defrost heater is turned on to melt the ice build up on the evaporator unit.
The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped i.e. cooling is stopped and temp rises in compartment, and the defrost heater is turned on to melt the ice build up on the evaporator unit.
 
When the set temperaturetemp of the defrost thermostat (or sensor) has been reached it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temperaturetemp back down again to the set temperature.
When the set temperaturetemp of the defrost thermostat (or sensor) has been reached it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temperaturetemp back down again to the set temperature.

Estatus:

open

Aporte original por: jayeff ,

Texto:

Hi ,

What is the make and model number of the freezer?

Do you mean that the temp goes from 2 to -22 deg (centigrade?)?

If so does altering the set temp from -18 alter the temperatures that you’re seeing e.g. set for -16 and check if the temperature changes correspondingly?

Have you tried using a thermometer to check the temperature in  the freezer if the temperatures you’re seeing are shown on a control panel, just in case there is an error there?

How often does this happen?

If only once every 8-10 hours it may just be the defrost cycle in operation

The defrost cycle takes about 15-25 minutes and during this time the compressor and evaporator fan are both stopped and the defrost heater is turned on to melt the ice build up on the evaporator unit.

When the set temperature of the defrost thermostat (or sensor) has been reached it signals the control board to end the defrost cycle by turning off the heater and to restart the compressor and the evaporator fan again to drive the temperature back down again to the set temperature.

Estatus:

open