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Old 06-06-2021, 08:04 PM   #1
Stengy
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Default Rear AC and outlets not working

2005 Sun Voyager 8368. We are hooked up to 30A service and while the front AC was running we turned on the back AC as well. After about 5 minutes the rear shut off and won't come back on as well as the two outlets in the bedroom. Everything else in the coach is working, including the front AC. I'm sure we overloaded the circuit, but the breaker was not tripped(turned every one off and on several times) . Tested an reset both GFCI's(kitchen and bathroom), swapped fuses and checked the breaker on the outside power station. Not sure where to go from here so any help would be greatly appreciated!
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Old 06-20-2021, 10:58 AM   #2
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Unplug and pull cover on Power Panel/ Breakers and Inspect/ test breakers and wires; Check/ tight ll wire lugs/ screws in panel? Are U sure of 30a? Unusual for two airs on 30a for most, but read some MFRs installed factory EasyStarts?
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Old 06-20-2021, 12:17 PM   #3
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Obviously something fried going to the 120VAC supply for your rear air. If not a breaker, I've found issue can be at an outlet. Typically they will run Romex to an outlet, there it is pushed into the outlet box, which pierces the insulation making contact (that's good ol' RV engineering for you). Hopefully you have a non-contact AC tester? Get one for a couple bucks at Walmart. Pull the outlets that are not working from wall (keep in mind the screws are holding toggles that hold the box in the wall, don't screw them all the way out), hopefully you'll find the one that acts as a junction for AC feed to the AC. A non-contact tester will show you power going in, but not going any further. The wires can be re-pressed into the back of the receptacle box and hopefully fix your issue (if not fried and FUBAR). This may sound convoluted, but you'll see what I'm talking about if you feel comfortable enough to dig into it. Be sure to turn off the breakers before taking outlet box apart.
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Old 06-20-2021, 04:59 PM   #4
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I would suspect that your 50amp to 30amp ADAPTER is no longer working correctly
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Old 06-20-2021, 05:01 PM   #5
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and typically a Roof a/c unit is on it's OWN breaker, with no other circuits or outlets, so it sounds like you have lost one 'side' of your 50amp double-pole incoming power, meaning that the 30amp incoming supply has been impacted by your ADAPTER, not allowing the power to reach to other 'breaker' side, which is typically one of your a/c units, a circuit of outlets, and maybe other items, too. Those 'other' items are probably not working, either.
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Old 06-20-2021, 05:03 PM   #6
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if not the adapter, it 'COULD' be your ATS(auto transfer switch), meaning that the power from the shore is coming into it, but not being sent FROM it to your Breaker panel. If your generator provides the power to run everything, then it's certainly a Shore Power issue, either the Adapter or the ATS.
Generally, the ADAPTER provides the ability to have the RV 'share' the 30amp power along both 'sides' of the 50amp double-pole breaker in your RV's Breaker panel, but it also have to go thru both 'sides' of your ATS, first, as well.
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Old 06-20-2021, 08:34 PM   #7
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I normally try to only run one unit on 30 amp
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