iFixit - Answers With Device "Welder"

TW 350S: No se saber cual es el negativo y positivo

Mon, 27 Apr 2026 08:23:23 -0700

De un soldadora no se sabe cual es negativo y positivo

No se cual es el positivo y negativo de mi soldadora inverter

⟐ Commented abril 27, 2026 at 8:23 GMT-7

Welder: soldadora porten ps-et250

Fri, 19 Dec 2025 08:08:18 -0700

Buenos días con todos, tengo esta soldadora porten ps-et250 el problema aquí es que el técnico que estuvo reparando saco una resistencia y un integrado la razón decía que estaba quemado por eso no realizaba el arco eléctrico pero para mala suerte el técnico desapareció sin dar solución a ese problema

⟐ Answered diciembre 19, 2025 at 8:08 GMT-7

Lincoln Electric Welder: Enciende pero no revienta el electrodo

Sun, 30 Mar 2025 07:38:15 -0700

Como reparar la soldadora no revienta el electrodo

⟐ Answered marzo 30, 2025 at 7:38 GMT-7

Century Welder K34931 2017: La maquina se apago y no prende por que?

Mon, 24 Mar 2025 22:32:44 -0700

La maquina se apago y no prende por que ?La maquina se apago y no prende por que ?

⟐ Commented marzo 24, 2025 at 22:32 GMT-7

Welder: Inversor ax 120amp ,prende y se protege

Tue, 20 Jan 2026 07:59:21 -0700

Que tal tengo un inversor ax120amp,al prenderlo jala bien el ventilador en 2 segundos se baja el voltaje y prende el indicador de temperatura. Ya lo probé con otra fuente de alimentación y hace lo mismo.

⟐ Edited by author enero 20, 2026 at 7:59 GMT-7

Lincoln Electric Welder: No prende después de que ISO corto la la placa con la carcasa

Thu, 08 Jan 2026 02:13:01 -0700

No prende después de que ISO corto la placa electrónica con la carcasa

Welder: Porque mi soldador enciende, pero no quema el electrondo

Wed, 13 Aug 2025 06:40:04 -0700

necesito un poco de ayuda con el tema de la revicion del circuito soy principiante, estoy haciendo la carrera de Ing electronica y me gustria interiorizarme mas en el tema, lo cual me dejaron esta soldadora para ver si la podria dejar funcionando. el problama no esta en que no enciende sino que cuando quiero soldar no funciona, pero prende de manera norma. Mi soldador es un Halley Sih200 Mini Inverter 200A

Welder: Enciende pero, No da arco!

Thu, 24 Apr 2025 04:28:31 -0700

Alguien me podría explicar, mi inversor es discover m200 y lo que he podido encontrar es un diodo de alta frecuencia en mal estado, no pude conseguir ese diodo en Colombia, es un mm80fu040 lo pedí de china y se perdió el paquete en el camino. Podría reemplazarlo por otro que de la misma frecuencia?

Lincoln Electric Welder WELDPACK 140HD 2014: Por que mi soldador lincoln 200 prende e intento hacer arco se apaga

Fri, 21 Feb 2025 20:36:45 -0700

Por que mi soldador lincoln 200 mini prende y cuando intento hacer contacto o arco se apaga

Welder: Looking for a little help

Tue, 20 Oct 2020 12:49:24 -0700

Im rebuilding the wire speed control on my small welder and am wondering if anyone knows where i can find a three terminal rotary rheostat 115 volt 250vac 40 amp . The company I bought the welder from is in Italy and no longer has any dealers in my area and when i contacted the company they said they wont sell parts to end users . The web site they sent is all in Italian . Got a friend to translate for me and even hes not sure how to get what I need . I've gone over the cuircit board and am pretty certain the problem is in the rheostat. @oldturkey03 Mike im kinda directing this in your direction but will take help from anyone Im just not finding anything

Update

The welder is a Deca 150e Its a portable welder I use at job sites without 220 outlets as this runs off 110

I have my thumb on the rheostat it measures 1 1/4"by 3/4wide

size doesnt really mater as I can adapt to most any size .

Just to let you know what I've tried . I replaced the entire board with a model train controller that worked great on low settings but burned out on the high setting . I've also tried a dimmer switch with similar results

⟐ Answer edited octubre 20, 2020 at 12:49 GMT-7

Welder: My sali welding machine out put not working

Mon, 27 Oct 2025 02:33:28 -0700

My sali welding machine out put not working

⟐ Commented octubre 27, 2025 at 2:33 GMT-7

Century Welder 125GL: Strikes a arc before I pull trigger

Tue, 05 Mar 2024 04:55:28 -0700

Strikes a arc before I pull trigger

⟐ Answer edited marzo 05, 2024 at 4:55 GMT-7

Miller Spectrum 375 X-treme: Anyone Have a Miller 375 Plasma Cutter Service Manaul

Tue, 30 May 2023 21:58:57 -0700

Anyone have a Service / Tech. Manual or Board Schematic For a Miller 375 X-TREME Plasma? Serial Number Range: LG130001P through LG190233P

http://www.stevenrhine.com/?p=3131

⟐ Edited mayo 30, 2023 at 21:58 GMT-7

Welder: NBC 250 inverter mig welder no spark

Tue, 04 May 2021 04:46:05 -0700

Hi all , i have an NBC250 inverter mig welder which has no spark , the fan works ok , the wire feed seems ok when i press the torch trigger just no arc ,

i have checked all the mosfets and diodes on the large heatsink (labeled on photo) ,all these check out ok ..

The only place i don’t seem to get any voltage is on this one cable which goes from the bottom board with all the mosfet / diodes , circled in red , im not sure which board should feed which and when ..

⟐ Answer edited mayo 04, 2021 at 4:46 GMT-7

Welder: it just shut down, no power

Wed, 01 Feb 2017 12:46:59 -0700

it's a campbell hausfeld welder model ws28000

⟐ Answered febrero 01, 2017 at 12:46 GMT-7

Century Welder FC90 2017: My century welder popped and now don't work

Sat, 10 Jan 2026 04:59:59 -0700

i started to weld and all the sudden something in the welder popped and tripped all the circuits in my home. now it the welder don't work. i just bought it a month ago and used it once before the welder blew up.

⟐ Answered enero 10, 2026 at 4:59 GMT-7

primetech mig200 MIG welder: What is the nominal for R1 resistor?

Mon, 03 Jun 2024 03:22:46 -0700

Hi. What is the nominal for R1 resistor?

⟐ Commented junio 03, 2024 at 3:22 GMT-7

Century Welder 125GL: Drive rollor not spinning

Sat, 29 Jul 2023 21:48:29 -0700

I can't figure out why my drive rollor won't spin when I pull the trigger. I pulled off the motor and tested it and the motor works as it should. The red wire going from the motor to the coil is getting power but I'm not getting power from the black wire the goes from the motor to the circuit board. Does anyone know what the problem is? Im thinking it might be the circuit board but I don't see any signed of it being bad from looking at it.

⟐ Answered julio 29, 2023 at 21:48 GMT-7

primetech mig200 MIG welder: I don't understand the 8 levels

Sun, 25 Dec 2022 18:06:43 -0700

I don't understand the 8 levels for volts and amperes. Do you have idea for calculate ?

⟐ Commented diciembre 25, 2022 at 18:06 GMT-7

Welder: Plasma cutting depth and thickness

Sun, 29 Nov 2020 18:17:18 -0700

I'm trying to open a old safe I found in a building that my company was raring down and its older safe over 350 pounds I've got a plasma cutter 60 amp it says it cuts 1 inch steel as so manybinch a hour

My question is that and will a plasma cutter cut deeper and deeper but it will make the cut slower and very ugly?

⟐ Answer edited noviembre 29, 2020 at 18:17 GMT-7