Question about General Electric Refrigerators

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I have a GE side by side PSG29NHSACBB serial number LH438193 There is a low pitched howling/humming noise coming from the freezer compartment. The noise is not constant but cycles on and off in a alleatory manner. It will make the noise for a long period of time then suddenly stop and work normally (that is with the ventilator working in a pretty low noise) then resume again after several minutes or hours. The only way to permanently stop the noise is to turn the freezer thermostat control to off and leave it there. Alternatively, if I turn it to off, wait a few seconds, then turn it on again the noise stops for a few minutes (even though the air is circulating) but eventually it starts again. I have had changed, by GE's technical assistance, the main control board, and this solved the noise for a while (almost 11/2 years) but now this low pitched howling/humming noise is back. I paid good money for this change, and I am not willing to pay for a second new board and fan motor (this is what my GE service man told me)

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The noise you described is indicating towards the fan in the freezer compartment. If this fan motor gets weak or the fan blades gets obstructed then this type of noise is heard. First check, if there is any over ice frost getting build up on the evaporator coil. If you see, this over ice frost getting build up then, yes, due to ice frost getting build up, the fan blades gets obstructed and this makes noise. But if the ice frost is not there and fan blade moving freely, then its fan motor issue causing this noise. The fan motor has to be replaced. If you see, too much ice frost collected there, then its defrost related issue. First try manual defrost reset procedure. The procedure is as follows: ----

First unplug the unit from main power outlet. Then empty whole unit completely. Then keep both the doors open. Wait for 24 hours. All the ice collected on the coils and in the freezer section will get melted. Clean the water from the sections. Then Connect the power cord of the unit to main power outlet after 24 hours/.Then set the temperature to normal in both fridge and freezer section. It will take near to 4 hours to get run in its proper cooling cycle. Then check, if the problem returns again. Then its defrost board problem. -------------

If it's again building up ice that means the unit is not defrosting. It's starting the cooling procedure, and then while defrosting, it's not working. The defrost assembly consists of three main parts. The defrost thermostat, the defrost heater and defrost board. Any of the one is not functioning. When thermostat sense the maximum cooling, it triggers the defrost heater to start heating and this defrosts the ice collected on the coils and the system works. Both thermostat and heater are controlled by defrost board. First the thermostat and defrost heater to be checked, if both check ok by meter and visually, then its defrost board causing the problem. You can get required parts from from online sites like: --- www.repairclinic.com or from searspartsdirect online site. --------- This should help.Thanks.Helpmech.

Posted on Apr 06, 2011

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