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Evaporator fan motor no working. - LG Refrigerators

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First off you need to check to make sure you are getting 120v to the evap fan motor. If this is an amana or maytag ref then it could be caused by a bad defrost termination killing power to the evap fan motor. If you have 120v to the evap fan motor then it will need to be replaced. Sometimes if you remove the back panel you can start the fan motor back up by giving it a nudge with a screwdriver.

Hope this helps _MJ_

Posted on Feb 07, 2010

  • Matt Ace Appliance Feb 07, 2010

    Im sorry i didnt read that it was an LG so its actually going to be a DC motor in which case you would not be looking for 120v to the fan motor. It will probably be something like 12-14 volts DC. If you are not getting the proper voltage to the fan motor then you could be looking at a control board issue in which case you may want to call a tech out because the board has to be pinned out with a schematic to see if its putting out proper voltage.

    Sorry about the mix up _MJ_

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Samsung RB31F Fridge/Freezer - fridge temperature too high, freezer OK


1-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.
2-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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1 Answer

I have a side by side whirlpool fridge and the freezer is fine but the fridge is now freezing everything. It's about 11 years old.


Since you stand to loose all the food I would call a service tech ASAP. But here are the most common reasons for the problem you have.
Cause 1
The Evaporator Coils are Frosted Over The defrost heater assembly turns on a few times throughout the day to melt away any frost that may have accumulated on the evaporator coils. If the defrost heater assembly is defective, frost will continue to accumulate on the evaporator coils, and the coils will become plugged with frost. If the evaporator coils are frosted over, the airflow through the coils will be restricted, causing the refrigerator not to cool. Check the evaporator coils to determine if they are frosted over. If the evaporator coils are frosted over, test each component of the defrost system.
Cause 2
Evaporator Fan Motor The evaporator fan motor draws cold air over the evaporator coils and circulates it throughout the freezer. If the evaporator fan is not working, the freezer or refrigerator will not cool adequately. 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..
Cause 3
Damper Control Assembly The air damper control opens and closes to let the proper amount of cold air into the refrigerator compartment. If the damper does not open properly, it won't let enough cold air into the refrigerator. Check the damper control to determine if it is broken or stuck closed.

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1 Answer

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That's the evaporator fan! If its not running, it can be due to several reasons. First check for voltage at the fan motor. Then make sure nothing is caught in the fan blades. If the blades are free and there is voltage to the motor and it still does not run, then replace the evaporator fan motor.
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Try spinning the evaporator fan motor with your fingers. If the freezer door was left closd it may have rusted on its shaft and be stuck. We need to test the voltage going to fan if oiling its bearing and spinning byhand does not get it moving. Click Here for a service manual=> HERE and here=> GE Artica Test Sheet The fan motor or a relay on the motherboad may also be defective. You should get 12-13 volts DC at the fan motor, Thanks Sea Breeze

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There is one compressor that serves both the freezer and refridgerator compartments. You need to confirm if the evaporator fan in the freezer compartment is working. When you open the door to the freezer, you should see and hear the evaporator fan in the freezer compartment running. Particularly if there is a demand on the unit through the thermostat setting. If the evaporator fan is not operating, you can check the evaporator fan motor with a volt meter to see if it's getting power. If its getting voltage, but not operating, you need to replace the evaporator fan motor in the freezer compartment. There are 3 wires that attach to the evaporator fan motor. One hot wire, one neutral wire and one ground wire. The ground wire is usually marked green, the voltage wire is usually marked black and the common wire is usually marked white. You should get a reading on your volt meter of a voltage from the hot post to the neutral or from the hot to the ground. If it is getting power but will not operate, then it is definitely a bad fan motor that would need to be replaced.

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1 Answer

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There is one compressor that serves both the freezer and refridgerator compartments. You need to confirm if the evaporator fan in the freezer compartment is working. When you open the door to the freezer, you should see and hear the evaporator fan in the freezer compartment running. Particularly if there is a demand on the unit through the thermostat setting. If the evaporator fan is not operating, you can check the evaporator fan motor with a volt meter to see if it's getting power. If its getting voltage, but not operating, you need to replace the evaporator fan motor in the freezer compartment. There are 3 wires that attach to the evaporator fan motor. One hot wire, one neutral wire and one ground wire. The ground wire is usually marked green, the voltage wire is usually marked black and the common wire is usually marked white. You should get a reading on your volt meter of a voltage from the hot post to the neutral or from the hot to the ground. If it is getting power but will not operate, then it is definitely a bad fan motor that would need to be replaced.

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1 Answer

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