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Freezer display temp does not match actual temp

I have a GE profit refrigerator/freezer. The user interface displays the actual temp of the freezer as -9*, but the actual temp is 20*. I have replaced both thermistors and the control board. It is still doing it. I can put the user interface into test mode and everything tests normally. I set it to prechill mode and it will get to the correct temp in the freezer, and read the correct temp for a while. But ultimately the user display will go back to registering -9* as the actual temp but it will only be 20*. 

Also, there are no leaks in the system. The coolant levels are normal. Does anyone have any ideas?

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Hi @cjmitchell ,

What is the model number of the refrigerator?

What is the refrigerator compartment temperature like?

Just wondering how you checked the "coolant" levels as it is a sealed refrigerant system? Do you mean the high/low pressures in the sealed system?

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MODEL GSHS6HGDSS. I should have been more specific: the sealed system was checked by an appliance repairman and was fine. The refrigerator temp stays within a few degrees of what it is set on the display (37*).

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Mine is opposite, the fridge set is 37 but actual states 60. The freezer is set for 0 and actual is 0. Any ideas?

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Hi @cjmitchell,

Since the refrigerator temp is OK and the freezer is still below freezing but just not at what is showing I’m wondering if perhaps outside air is getting into the freezer compartment somehow, a faulty seal somewhere perhaps.

Is there an ice or frost build up around the ice dispenser area by any chance? If so it may be a faulty dispenser ice chute door, part #62 freezer door parts diagram. The door flap can disconnect from the dispenser lever or the plastic tabs that hold it in place may break and this allows the outside air to get into the freezer compartment.

You could also check the freezer door seals as well. Place a sheet of paper between the door and the door jamb and try to pull it out with the door closed. It will come out but not that easily and it certainly shouldn’t just fall out by itself. Try this at various places around the door, top, bottom and both sides.

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Hi @Candy Aaron

What is the model number of the refrigerator?

Can you hear if the evaporator fan inside the freezer compartment is operating?

It will stop when the door is open and start again when it is shut (either door -freezer or refrigerator), so you may be able to hear it that way.

If you can't hear it then there is either a defrost problem or an evaporator fan problem. The fan should operate as long as the compressor motor is running.

A defrost problem means that ice builds up on the evaporator unit and eventually ices up the fan which stops it from working. It is the evaporator fan that blows the cold air from the freezer compartment into the refrigerator compartment to cool it down to the set temperature.

The causes of a defrost problem could be either a faulty defrost heater, faulty defrost thermostat (or thermistor), blocked drain from the freezer to the evap pan under the compartment or a faulty control board

A fan problem could be a faulty fan or loose fan blade or a faulty control board.

If you can hear it, then it may be an air damper problem

Note: All the above is for a refrigerator model that has only the one evaporator unit and not two i.e. one in the freezer only and not one in the freezer and one in the refrigerator. That’s why knowing the model number helps as it can be other problems for a model with two evaporator units.

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Thank you for the fast reply! The model number is GSHF6HGDBCBB. Everything appears to be working fine and the refrigerator is very cold. Just not sure why the actual temperature will not change.

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@Candy Aaron

Can you place a thermometer in the refrigerator compartment to check what the actual temperature is?

If you have an appropriate thermometer check the freezer compartment as well.

Just verifying that if you change the set temp either ↑ or ↓by a degree or two for the refrigerator compartment, does the display alter to what you want but then it goes back to 60°F, is this correct?

When the compressor has stopped running try disconnecting the power to the refrigerator (unplug it from the wall outlet) for about 5 minutes and then reconnect the power and check what happens to the display.

Try not to open the doors during the time it is un-powered to preserve the cool temps inside the refrigerator.

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