I have an ac/dc fridge on my boat made by Nova Kool. However, I'm pretty sure the parts are GE and I just found what looks like the exact cold control unit here and ordered it. Looks identical from the picture. The fridge will work for a while, but then just stop workiing. The light is on so the unit has power. But it isn't turning on no matter if I reboot or turn the thermostat up and down. I'm replacing the thermostat but does this sound like any other problem? The unit is inside the cabin wall of the boat and it's hard to get to the workings. Thanks for any insights!