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LG Model LFXC24726D/00 40+ degf Frig temp, Evap Fans dont run

I have a 2 year old French door style, bottom freezer LG Model LFXC24726D/00. Problem was noticed last week with the refrig temp set to 34 Degf and freezer set to 0 degf yet the frig was in the mid 40’s and the freezer in the mid 20’s.

I have troubleshot it to the two evap fans do not run while the compressor is on. Unit still makes Ice too

But -

Since it is all digital it does have diagnostic capabilities. I downloaded the service manual and followed the instructions to put the main control board into test mode 1, (Compressor and both evap fans ON) they turn ON while in Test mode and don’t produce any errors.

Also, condenser fan is working fine, and the cond coils are clean.

I am thinking either a temp sensor or somehow stuck in defrost mode. But if that were the case I would produce an error. I haven’t taken an resistance reading on the sensors yet.

One step away from calling someone out, but thought I’d ask for other things to check.

Thanks

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Cause 1

Condenser Coils are Dirty

The condenser coils are usually located under the refrigerator. They dissipate heat as refrigerant passes through them. If the condenser coils are dirty, they won’t dissipate the heat effectively. As debris builds up on the coils, the refrigerator becomes less efficient, causing the refrigerator to work harder to cool down. If the coils are significantly dirty, the refrigerator will not be able to maintain the proper temperature. Check the condenser coils to determine if they are dirty—if the condenser coils are dirty, clean them.

Cause 2

Condenser Fan Motor

The condenser fan motor draws air though the condenser coils and over the compressor. If the condenser fan motor is not working properly, the refrigerator won’t cool properly. To determine if the fan motor is defective, first check the fan blade for obstructions. Next, try turning the fan motor blade by hand. If the blade does not spin freely, replace the condenser fan motor. If no obstructions are present and the fan blade spins freely, use a multimeter to test the fan motor for continuity. If the condenser fan motor does not have continuity, replace it.

Cause 3

Evaporator Fan Motor

The evaporator fan motor draws air over the evaporator (cooling) coils and circulates it throughout the refrigerator and freezer compartments. Some refrigerators have more than one evaporator fan motor. On refrigerators with only one evaporator, the evaporator is located in the freezer compartment. If the evaporator fan is not working, it will not circulate the cold air to the refrigerator compartment. If this occurs, the freezer may still get cold, while the refrigerator will not get cold. To determine if the evaporator fan motor is defective, try turning the fan blade by hand. If the fan blade does not turn freely, replace the fan motor. Additionally, if the motor is unusually noisy, replace it. Finally, if the motor does not run at all, use a multimeter to test the motor windings for continuity. If the windings do not have continuity, replace the evaporator fan motor.

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toddmarquart さん、ありがとうございました!
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