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Customer Questions and Answers for Defrost Heater With Thermostat (Refrigerator) by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM6214404
Manufacturer Part Number: WR51X443

This defrost heater and thermostat assembly melts frost from the evaporator and shuts off at the proper temperature during the defrost cycle, restoring airflow and helping the refrigerator maintain steady, reliable cooling performance.

  • Heats the evaporator to clear frost/ice during the automatic defrost cycle
  • Thermostat opens to terminate heat once a safe temperature is reached
  • Helps restore air circulation to the fresh food section
  • Common failure signs: heavy frost on the freezer back wall/evaporator, poor cooling or warm fridge, fan noise from ice contact, little or no water in the drain pan after "defrosts"
What's included: 1 pre-assembled defrost heater with defrost thermostat Install notes:
  • Disconnect power before service; work on a fully de-energized appliance
  • Access is typically behind the freezer's rear panel; remove shelves/ice components as needed
  • Fully defrost before installing the new assembly to prevent damage and ensure proper fit
  • Reinstall in the original locations; clamp the thermostat to the evaporator tubing and route wiring exactly as factory, away from sharp edges and moving parts

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Questions & Answers

For Ge Defrost Heater With Thermostat (Refrigerator) (Part Number: OEM6214404)

1 Answer

Hello Tim, thank you for contacting APP, It appears that the Defrost Heater w/ Thermostat WR51X443 will work for this unit.

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1 Answer

Hello Suzie, I'm sorry but the defrost heater assembly WR51X443 comes as a complete assembly and the parts are not available individually. Thank you for your patience and understanding in this matter.

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1 Answer

Hello David, You should check the unit by forcing it into defrost and removing the rear wall from inside the freezer compartment. If it needs to be defrosted, you may need to replace the defrost heater harness assembly WR51X443 and set the freezer compartment to a warmer setting to allow the defrost water to completely drain out of the drain before getting too cold. The freezer temperature should run between 0°F and 10 °F.

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1 Answer

Bob, The defrost heaters are different wattages and will not produce the same amount of heat, or glow the same amount. If the defrost thermostat has a closed circuit when the evaporator coils are iced over, and since the heaters do glow and produce heat, you most likely have a faulty defrost timer, based on the information you supplied.

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Valerie for Model Number TFX25JPCGWW

The model no. on the door (paper) of my GE side by side only has TFX25JP. The owners manual has 11-98 CG on front bottom right so I thought that must be the rest of the number "CG" and of course WW for white. The diagram with the manual shows two heaters and part replacement number WR51X0443 for Defrost Heater & Harness. However when I put that model number in (TFX25JPCGWW) it is not this heater but takes me to a single heater. If by chance it is actually "CC" and not "CG" then this one is correct. There is also what might be a serial no. 197D1071P036.

1 Answer

Hello Valerie, for your model number you can order just the defrost heater replacement part number WR51X10055 or you can get it with the harness that includes the defrost thermostat WR51X10029. Thanks!

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Liz Lambert

Hi, my freezer was working fine but the refrigerator would not go below 60 degrees. When we realized the coils in the freezer were covered with ice and frost, I replaced the defrost heater and thermostat (using part number AP2071465, ordered here). When started up again, the fridge worked great for a couple of weeks. Now, the fridge is back up to 60 degrees and the coils are starting to ice over. (They are mostly iced over in a certain section of coil). Do you have any advice on what else the problem could be? I am fairly sure I installed the heater correctly, since it was pretty straightforward, but let me know if there is anything I might have missed. Thank you.

1 Answer

Liz, We would need to have the model number of the unit to assist properly but if this unit has a defrost timer then the timer would be the issue.

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1 Answer

Hello Eve. Look for a clogged drain. Also, make sure the evaporator fan motor is running good and the freezer door is sealing good on the unit.

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