johnnicinco
29-08-2010, 07:05 AM
Hi
I have a refrigerator that every two hours will fail to start the compressor and a quiet buzzing sound occurs. The buzzing stops after half a minute or so, giving up trying to start the compressor when it does. If I go unplug it and wait approximately 1/2 hour, it starts up fine with no buzzing. The fridge is great, nice and cold. The schematic shows it has an overload PTC Relay and I have replaced it, which changed the amount of time it took for the compressor to have a failure with the buzzing to three hours instead of two. If I leave it plugged in it just buzzes for 30 seconds and then quits and then 10 minutes later it buzzes again and so on. What could it be? The schematic shows the external capacitor as a run cap.
I have a refrigerator that every two hours will fail to start the compressor and a quiet buzzing sound occurs. The buzzing stops after half a minute or so, giving up trying to start the compressor when it does. If I go unplug it and wait approximately 1/2 hour, it starts up fine with no buzzing. The fridge is great, nice and cold. The schematic shows it has an overload PTC Relay and I have replaced it, which changed the amount of time it took for the compressor to have a failure with the buzzing to three hours instead of two. If I leave it plugged in it just buzzes for 30 seconds and then quits and then 10 minutes later it buzzes again and so on. What could it be? The schematic shows the external capacitor as a run cap.