[SOLVED] 3 way fridge won't run on 12v
Edit: Solved The switch, which I had previously determined was the problem and replaced, was in fact the problem. Replacing the switch with a new one had fixed the original problem. However, the is...
Forum Discussion
Finally found the RM 361. There are only 2 possibilities.
1. The selector switch is wired wrong for the 12 volt in and out. That is easy to check, verify 12 volt IN and 12 volt OUT when selected to 12 volt.
2. The tstat is defective on the 12 volt contac side. I would bet on the tstat as being burnt/corroded due to the hi 12 volt amp draw over the years. There HAS to be 4 wires on the tstat. The 120 and 12 volt side cannot share the same contac points. There has to be a contac point for completing the 120 current and a contac point for completing the 12 volt current.
3. IF you are not the original owner, you cannot be positive that someone did not change out the original tstat for a 120 only tstat. Doug
http://www.laurelhurstdistributors.com/parts/refrigerators/dometic/RM361-461-661-761.html
Looking at the 12 volt path. Notice that the ground(neg) for the heater goes straight to a ground source. But notice the 12 volt positive flow goes FIRST thru the selector switch, then thru the tstat and then BACK thru the selector switch instead of direct to the 12 volt element.
1. The selector switch is wired wrong for the 12 volt in and out. That is easy to check, verify 12 volt IN and 12 volt OUT when selected to 12 volt.
2. The tstat is defective on the 12 volt contac side. I would bet on the tstat as being burnt/corroded due to the hi 12 volt amp draw over the years. There HAS to be 4 wires on the tstat. The 120 and 12 volt side cannot share the same contac points. There has to be a contac point for completing the 120 current and a contac point for completing the 12 volt current.
3. IF you are not the original owner, you cannot be positive that someone did not change out the original tstat for a 120 only tstat. Doug
http://www.laurelhurstdistributors.com/parts/refrigerators/dometic/RM361-461-661-761.html
Looking at the 12 volt path. Notice that the ground(neg) for the heater goes straight to a ground source. But notice the 12 volt positive flow goes FIRST thru the selector switch, then thru the tstat and then BACK thru the selector switch instead of direct to the 12 volt element.
