Both compartments warm? no, just fridge.
Is Exap fan running? Yes = Troubleshoot defrost.
Homeowner friend called Guy out to look at this, he put the voltmeter on the connector for the defrost inside the fridge (it's red-white, center connector of a 2x6 pulg) and said no voltage here, "replace the board."
Homeowner friend of mine ordered a new board, same symptoms, so he wants to buy a new $1000 cold box, I say, just a defrost issue! can't be that big of a deal!
I don't know how to force the thing to go into defrost (but I bet there is a way!), so I pulled the board and put 120 to Orange (7) and White (9) which are "ice maker pipe heater" and "defrost heater, R" respectively. It seems to me that same 120 should show up on the middle two pins on the 2x6 in the fridge, but it doesn't. In fact, according to the cheap meter, I'm getting about 50v to ground from either pin. And we're talking about good old USA 120 vac, where the 120 is from a 240 volt system with a grounded center tap. So I'm doing something wrong, and it's probably obvious and simple, but I couldn't figure it out.
I'm planning on going back with a long lead and the good meter so I can verify orange and white go where I think they go.
Ohms on the defrost coil is 94 according to cheap meter.
"Breaking perfectly good appliances since 1975."