Freezer works great, the issue is the lower part doesn't stay cool. Would this be a board issue (WR55x10942) or fan issue (wr60x10209)?
You will want to check to see if the evaporator fan is running. If not then you will want to check power to the fan which should be 12 vdc. If there is not power to the fan then you would need a new control board. If the fan is working then check for a defrost issue. When you uncover the rear wall of the freezer compartment, if the coils are impacted with ice you will need to check the defrost heater and limiter to make sure that they have continuity. If not then replace the part. If they do then the issue would be either the defrost thermistor or the control board. You can check resistance of the thermistor which will tell you whether it is faulty or not.
Answered by AppliancePartsPros.com | Monday, May 06, 2013