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Customer Questions and Answers for Defrost Control Board by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18061458
Manufacturer Part Number: WPW10366605

The Defrost Control Board is an OEM replacement part for Whirlpool refrigerators. This circuit board coordinates defrost heating cycles to remove built-up frost from evaporator coils.

Causes relate to water damage following leaks, component failure due to power surges loosening connectors, or general component wear over time.

Symptoms of issues include:

  • Frost accumulation on interior freezer walls reducing capacity
  • Food freezing underneath heavy buildup layers
  • Inoperable heating element failing to restore airflow

This is a genuine Whirlpool OEM replacement this part is also compatible with Maytag, Jenn-Air and some Kenmore models.

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Questions & Answers

For Whirlpool Defrost Control Board (Part Number: OEM18061458)

1 Answer

Howard, the main control WPW10135090 / OEM24062230 in the compressor section would be responsible for the defrost cycle. If there is not a damaged wire in the liner, the control would be the cause of failure. Unfortunately, the control has been discontinued by the manufacturer and is no longer available.

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1 Answer

Hello JP, thank you for contacting APP, If the Compressor and Condenser Fan are not working but the Evaporator Fan is running this will be an issue with the Unit Harness W11580023 in the machine compartment where the compressor is or a wiring issue through the cabinet of the unit. The Evaporator Fan, Condenser Fan, and Compressor share common voltage from the control board and should all be running at the same time.

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1 Answer

Brad, Your issue would likely be the light modules in the refrigerator section as these are in series with the freezer light module.

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Steven for Model Number KRMF706EBS01

Hello, Evaporator is not defrosting. Defrost Heater Element checks with continuity. Replaced Cooling/Defrost Control Board WPW10678033. Evaporator is still frosting up. Unit will not do a Forced Defrost when selected in the Service Diagnostics Service Test 38 - only short cycle is available, no long cycle option comes up in that Service Test. Previously Evaporator would ice up from time to time but could be cleared with a Forced Defrost cycle or two. Defrost Thermistor in Service Test 77 returns 01= Pass. Service Test 73 to test Defrost Heater Output, Thermo Fuse is not available in the Service Diagnostics. Both RF and FC compartments are holding the correct temperatures of 37 deg and 0 deg. Obviously something else that is in the circuit has failed - but what?

1 Answer

Steven, With the control board having already been replaced and the unit defrosting in the diagnostic mode, this would most likely be an issue with the thermistor. Even though it is passing in diagnostics there could be a problem with it.

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Judson for Model Number ED5FHEXSS00

My fridge keeps tripping the GFCI. I tried another new GFCI outlet and it still failed. After resetting the fridge runs for 10-12 hours then trips the GFCI again. I believe it is related to the defrost cycle. Last night, the GFCI would trip immediately after reset. I found the parts guide for the Defrost control board, and after researching some similar schematics I was able to find online, I unplugged the 4-Pin molex connector that has a Pink and 2-Brown wires - which should have something to do with the defrost element. When I tried to reset the GFCI, it did not trip and the fridge is running at the moment and freezer temp is 6 degrees F. Please advise on what I have isolated...I could not find the wiring schematic for my model, and am hoping you can help?

Rodney for Model Number GD5PHAXMS10

One other thing about this problem is that you can turn the frig. off and on and it will start cycling again. DOES THIS MEAN ITS STILL THE CONTROL BOARD? THANK YOU, RODNEY response from earlier question: I have a whirlpool refrigerator that goes into defrost cycle and then will not restart the compressor after that. is this usually the control board or is there a defrost timer on this model? Do you have the electrical schematic for this frig.? thanks, Rodney Rodney for Model Number GD5PHAXMS10 ANSWER Hello Rodney, the cooling/defrost cycle is controlled by the Defrost Contol Board, WPW10366605 from your description of the symptom the relay on the board is faulty.

1 Answer

Hello Rodney, there is also a cold control thermostat WP2198202 that controls overall operation. To test if its the thermostat or the defrost board, the next time it stalls in defrost, unplug the ref from the outlet for a few seconds then back in, if it restarts its the defrost board, if it does not restart, turn the thermostat knob off/on and it restarts then its the cold control thermostat.

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1 Answer

Hello Rodney, the cooling/defrost cycle is controlled by the Defrost Contol Board, WPW10366605 from your description of the symptom the relay on the board is faulty.

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Darryl for Model Number 106.51123211

I have a Kenmore Coldspot (model 106.51123211) side by side that has a water/Ice dispenser on the freezer door that will not dispense water or ice. It will not even engage the ice maker auger. The ice maker itself receives water and generates ice. I have checked the door switches, and dispenser switch and everything checks out. The dispenser light works and the panel lights up. I have also replaced the dispenser control board in case it was faulty. I heard that an over pressure could cause issues, but I still get nothing after I turn the water off and bleed the lines. Any assistance would be greatly appreciated.

1 Answer

It sounds like you could have an issue at the main control. Find your tech sheet and wiring diagram and find where the voltage comes from to the auger motor the main control or dispenser control? If the main control powers auger, check the wiring from dispenser control to main control and from control to auger. Wiring at the door hinge could be an issue to look for as well.

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1 Answer

Hello Bob, there are two controls that power the compressor/fans, the defrost board and the cold control thermostat, a failure of either will stop the cooling. The cold control thermostat can be tested with a multimeter for continuity in the run position. The defrost control should have 120v went tested at terminals P5 orange to P4 white.

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