[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
neschultz wrote:
I’ve only had one 3 way Dometic. It was in a small motor home and would only work on 12 volts if the engine was running. So it had a separate 12 volt input from the engine 12 volts to allow that. Does that apply to you?
We had a 3 way Dometic also. It was RM663, with a logic board, but the 12 VDC was powered only with engine running. It had a Relay. A 200 watt element isn't much amperage at 120 VAC but it's a bunch at 12 VDC. 3 way fell out of favor because of that. Motorhome has so many current draws that even with an upgraded alternator, the coach charging system was coming up short.
