The defrost switch might fail into a "deadbreak" position in which nothing runs, similar to that described above. In a Whirlpool flex-tray icemaker as described in section 4-6, the defrost timer is integrated into the icemaker. If this does not start the compressor, make sure you leave the timer in the "run" mode for the rest of your diagnosis. Does the compressor start? If it does, replace the defrost timer. Place a screwdriver in the advancement pinion and advance the timer manually (remember, clockwise only) about 1/4 to 3/8 of a turn.
#FRIDGE COMPRESSOR REPAIR HOW TO#
(See section 4-5(d) and Figure 24 for details on how to advance the timer). It's as if it wasn't even plugged in, except that the interior lights will still be on. You will hear, see and feel nothing but a fridge that's not cold. The terminating thermostat will open and stop the heater at a certain temperature, so the fridge will not continue to heat up. If it is stuck in the defrost mode, the compressor will not run. If you have a fridge with a mechanical timer and you hear nothing at all, set the cold control on the coldest setting and advance the defrost timer. Check these components as described in section 5-3(c). If you are not getting voltage to the starting components, the cold control or ADC board is bad. If you have a fridge with ADC and the lights are on, and the compressor will not start, you need to check if you're getting voltage to the compressor starting components as described in Section 5-3(b). How you diagnose a non-starting compressor depends much upon whether you have a mechanical defrost timer or ADC (Adaptive Defrost Controls.)
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