Thor Forums

[TurnerFam]

it's easy to confirm the operation of the ATS:

- if you plug into any shore power, no matter whether 50amp, 30amp, or even just a 15a household outlet, you should IMMEDIATELY hear a 'thud' from inside the coach, where the ATS is located. It is transferring the connection to the Shore Power side of the switch, with a magnetic latching trigger. You should now have power.

- if you are not plugged into shore power, turn on your Generator. You should have a 30second or so wait, and THEN you should hear the 'thud' of the ATS switching over to the Generator side of the switch. You should then have power again.
This would also work the same even if you are already plugged into shore power, but I didn't want to confuse the issue - but the ATS 'defaults' over to Generator power, using it instead of shore power, but will also switch back over if you then turn the generator back off. That's what it's designed to do.

if you do not hear a 'THUD', or have power for either of these, you could have an issue with EITHER the ATS and it's wiring, OR the power source itself(such as a tripped breaker), OR lost a wiring connection within or at the ends of your Shore Power CORD.

Tripped breakers on generators are the typical 'help' issues for first-time users of generators in motorhomes, as they don't immediately recognize that the generator has it's OWN breaker(s)...(ME!, a great learning experience)...

Shore Power, especially 50amp double-pole RV service, is another culprit. If either side of the campground's breaker wiring is not fully seated, or tightened, they can also cause you to lose power to 'some' of your coach, for 50amp coaches.

The ATS's wiring can easily be assessed when you find where it's actually located. Our's is hidden behind a panel, under the foot of the bed, in a hidden 'chase'. Either of these wires could be loose, could have worked lose during heating of the wires during usage, or may have never been tightened properly at the factory(mine!).

Shore CORDS can also be suspect, since the wiring within them can pull from the ends, even within the cord end itself, but is not normally the first culprit in this case.