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Old 01-19-2015, 12:37 PM   #1
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No power from generator

With my generator putting no power to the coach will my shoreline still work ? Don't have 50 amp service at home to test ! Any insight on this problem?

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Old 01-19-2015, 12:46 PM   #2
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What is the make and model of your rig. Does it have an automatic transfer switch.

In most cases the shore power should work.

On most generators there is a circuit breaker on the generator, I have a 7500 Onan and the breakers are located on the generator control panel near the start switch. If the breaker(s) are thrown it will not provide power to coach. Check by throwing breakers off and then back on.

Jim J
2002 Monaco Windsor 38 PKD
2005 Jeep Grand Cherokee w/5.7 Hemi
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Old 01-19-2015, 12:46 PM   #3
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That is a good question.. And I will tell you why
There are two different types of automatic transfer switch (Plus one other method)

The one I have, it's "Resting" state is "Shore power" if the electronics that control it fail,, I get shore power. If the relays, also called Solenoids or contactors fail. Well,, That I'll cover down the page. But if the electronics fail , Shore power is the "Default option".

The other kind, the default option is "NOT CONNECTED" if the control electronics fail.. you are out of luck.

The third system is a manual transfer system (An outlet, matching your shore cord, somewhere on the RV, usually NEAR (or on) the generator, plug in to use generator.

Relay failure.

Sometimes epically if you hot switch (Fire up the generator with shore power present and teh air conditioners running) the inductive "KICK" of those big blower and compressor motors will cause arcing o the relay contacts, this can weld them in one or the other position, Not good.

This is why you should shut off shore power for 2 minutes (minimum) Before starting generator (or otherwise kill all loads first, I trip my main circuit breakers)
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Old 01-19-2015, 12:48 PM   #4
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One other thing. You say Generator not supplying power....

On the genrator there are usually a pair of circuit breakers.. On mine the ON/OFF (the "Tripped" position is full off) markings are not easy to spot. (A flashlight helps). You might wish to check those.

ONAN generators, if they are not working, shut down.
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Old 01-19-2015, 01:21 PM   #5
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All breakers are on, the time relay board fried inside of the transfer switch while running the generator! Will the shoreline work with this condition ?
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Old 01-19-2015, 05:40 PM   #6
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Usually the shore power will still work, but once you say a circuit board is fried, it's anybody guess. So while your chances are good, it's not a given.

Gary Brinck
2004 American Tradition; 2013 Buick Verano
Homebase in the Ocala Nat'l Forest near Ocala, FL
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