My evaporator fan motor runs and stops. Compressor still running. The unit seems to cooling fine but fans goes on/off. Is this caused by a bad board? Is this normal or could it be the fan motor? thanks for your help
If the fan is ramping up and down and turning on and off then you will want to check for voltage at the control board to make sure that you are getting a steady 12 vdc to the fan motor. If not then the control board is faulty and would need to be replaced.