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Jim_McGarvie's avatar
Jim_McGarvie
Explorer
Aug 03, 2019

gennie not providing power to coach

We checked into an RV park yesterday and discovered the power pedestal was inoperative. Electricians were called and have been working on it this afternoon. They thought they had it fixed and asked me to go inside and check it. I did, and our Energy Management System (EMS) was indicating 50 amp service available, but our AC voltmeter plugged into an outlet initially indicated 115-120 volts but immediately dropped to zero.

They gave up and called the local power company, but when I started the gennie to charge the batteries again I discovered the gennie was no longer providing power to the coach. I’ve reset its breakers and the main breakers but no joy. I’m afraid the electricians’ experiment with the low voltage might have fried the EMS or something.

Any ideas?

Thanks.

Jim
2002 Monaco Knight 30PBD
  • Sam_Spade's avatar
    Sam_Spade
    Explorer
    Aug 03, 2019
    enblethen wrote:
    The transfer switch could be seeing power to hold it in shore powr and not allowing to go to genset.


    AND....if you don't have a "transfer switch", did you remember to move the power cord FROM the pedestal TO the outlet for the generator ?? Yes, I've done that before. :R
  • Planning's avatar
    Planning
    Explorer
    Aug 03, 2019
    Jim McGarvie wrote:


    Any ideas?



    In addition to the other suggestions, if you are using a Progressive Industries EMS, you might have an unbonded neutral on your generator and the EMS will not allow power into the coach in that situation.

    Read here for more information
  • enblethen's avatar
    enblethen
    Nomad
    Aug 03, 2019
    Are you disconnected from the shore power?
    Remove shore power from pedestal. The transfer switch could be seeing power to hold it in shore powr and not allowing to go to genset.
    Pedestal back to the sservice point is responsibility of the park. If it was the power utility problem, you would not be the only one effected.
    Sounds like an open neutral in park system.
  • BFL13's avatar
    BFL13
    Explorer II
    Aug 03, 2019
    Are you using an inverter/charger and if so what model? The 120v pass-through of the inverter part might need some sort of reset.

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