pjw73nh wrote:
Hi Bob, tnx for the reply. Yes, I saw that. I have the same manual. I have 13.67V at the heater. I have not measured resistance. I will try and do that tomorrow. But with the 15 amp current flow I must be pretty close to the .83 Ohms plus/minus 10% that they are looking for. I don't think there is another way of testing it (replacement $$). Would rather not spend the $$ unless I am CERTAIN that it is the issue.
I am still left with the thermostat issue even AFTER I fix the 12V issue.
No offense, but it seems like you're fixated on the thermostat and looking for confirmation before springing for the new one. It also seems you might be over analyzing the problem - a common thing many engineers often do. You need to find those components that are unique to the 12V cooling cycle and not used anyplace else. (Occam's Razor and the KISS principle are often overlooked when trying to solve complex problems.)
If the unit cools properly on AC and gas and it doesn't have two thermostats then you should be able to eliminate the thermostat. And with the testing you've done on the 12V you can probably eliminate that cause as well. The unit needs 12V for other things and with everything else seeming to work as expected then the 12V is probably not an issue. That only leaves you with the heater which is only used when cooling with 12V.
