James February 21, 2022 for Model Number Lmx25964st/00 Compressor is a fc75lane. Error code Is ff. Both freezer fans are running . The thermostat checks proper ohms the defrost heater checks out proper ohms. The compressor checks out proper ohms & appears to be running. I checked the capacitor on the abq73004304 compressor controller & it is good. Could it be in the controller & how can it be checked. I hate to buy a new part just for trial & error. Running the test sequence everything cycles. Is the compressor two speed?
1 Answer James, WIth getting an FF error code and both fans in the freezer are running then this will be a faulty control board. Read More...