Chosen Solution
My freezer wasn’t getting cold enough on my LG french door fridge. I replaced the thermistor. When I turned it back on, the green light on the mother board started flashing 3 times, and the compressor no longer vibrated. I let it sit overnight, unplugged. When I started it in the morning, the interior fans were blowing harder, than prior to thermistor installation, and the green light is still flashing. The compressor was working prior to part change, and no longer vibrating now. 3 flashing lights mean one of 3 things- loose wire, PCB bad, loose ground. None of these apply. Why doesn’t the compressor vibrate immediately after the change of part? Could it be a faulty part? BTW, the “plugs” at the end of the wires are NOT easy to remove. I had to call a neighbor to put some muscle into it.
Hi @njgirl , I don’t know the model but here’s the section from the service manual for a LG lmxc23746s which may help. Hopefully it isn’t too much different to your model.
