Thanks for the wiring diagram, after looking at it it all made sense until I looked at the wiring diagram on the back of my unit. I suspected that I didn't have a common connection coming back from the compressor so I attached the common lead to an external source via a pigtail and the compressor runs great. So, that makes me think that the thermostat is bad or a bad connection on the terminal block shown on my wiring diagram. My relay is very similar to the one in your diagram except there are no wires on 2 or three because the neutral connection coming back from the thermostat is made on the terminal block that is no where to be found. You can see in the pictures that the power wires and the power and common to the relay pass through a hole in the back which is about 1 inch by 1 1/2 inches. The shot of the upper panel shows the brown and yellow wires from the thermostat passing through headed down to the junction block. This unit has a light (which I didn't even know about) and it works just fine with the door switch. So my questions are: Do you know where the junction block is? Apparently it is somewhere between where the wires go in the bottom and below where the thermostat wires disappear into the insulation. There are no more access panels to remove. The entire interior is one solid metal shell and there are no panels in the compressor compartment. I tried using my inspection camera but there is too much insulation in the way and I can't see anything. Surely you don't have to gut the interior to get to this junction block. I can't check or replace the thermostat without access to the junction block. The other question is how to remove/replace the thermostat. The picture show the two screws holding it but there is still a tube to deal with. I really appreciate your help.
