Forum Discussion

tev123's avatar
tev123
Explorer
Mar 22, 2016

No coach 110v power when connected to shore line

New problem today (gotta love 25 year old appliances)

Connecting the shoreline to a 110v source (eg. home extension cord), I've got no power to the coach. Was working 2 days ago and I have not done any electrical work.

Symptoms:

- connecting shoreline provides NO power to the AC circuit / main breaker of the power distribution panel; I also don't hear the transfer switch relay tripping either anymore

- starting the generator does trip the transfer switch and the AC circuit energizes as normal

- when connected to shore, I've tested 110v energized all the way up to the automatic transfer switch box connection, right on top/back of the distribution panel, but no power at the breakers hot bus, so I am suspecting the relay inside the transfer switch

the ATS/Power Distribution Panel is one of these:


Can these things be repaired? or am I looking at needing a new ATS/panel?
  • corvettekent wrote:
    Have you checked the circuit breaker in the house that you extension cord is plugged into?


    I have power all the way up the ATS connection, so there is 110v up to the back of the ATS/panel. Used a little 110v tester light. Put one probe in the hot lead, one in the neutral. Light turns on.
  • sch911 wrote:
    That looks like your distribution panel, but I'm not seeing an ATS in there.


    the ATS is just behind the dist. panel (attached to the back of it; it is part of the appliance)
  • If you are using an adapter, try another as they go bad.
    Check the receptacle you are plugging into with a known good appliance like a drill or lamp. It could be fed through a GFCI receptacle and it could be tripped.
  • Follow the power into the transfer switch, and then back out again.
    The transfer switch is normally de-energized when on shore power.
    Also check the circuit breakers on your inverter.
  • Have you checked the circuit breaker in the house that you extension cord is plugged into?
  • That looks like your distribution panel, but I'm not seeing an ATS in there.