Linda for Model Number RF4287HARS/XAA-0001 The fridge is working fine but the Freezer is not working. Temp vary from 29deg to 60deg. Do i need the main control board and inverter? What are the part #'s of the temperature sensors i should also replace? Thanks. Have ordered parts from you and always get fast efficient service, appreciate that. Linda
Answer Linda, At temperature fluctuation of 29 to 60 degrees you will want to remove the rear wall in the freezer and look at the frost pattern on the evaporator coils. If the coils are impacted with ice then check the defrost thermistor and the defrost heater. If they are good then the main control would be the issue. Read More... Answered by AppliancePartsPros.com | Tuesday, August 1, 2017