Woodchuck, I'm sorry to say I don't know. I unplugged the unit and pulled it away from the wall and I don't see a whole lot in the back/bottom. I see some wiring leading to a black oblong ball looking thing that I assume is the condenser. The cooling fins are actually inside, behind the inside wall on the bottom half of the unit. When I plugged it back in I didn't observe which fans were running but I do feel cool air in the inside bottom. It just doesn't continue and freeze.
I'll check the fans tomorrow. |