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Old 11-05-2009, 09:54 AM   #1
2006 30' Classic
Myrtle Beach , South Carolina
Join Date: Aug 2008
Posts: 11
Hot Water Heater Circuit Breaker

Have a '06 30' Classic. The 15 amp water heater circuit breaker will not reset even if the switch is turned off. If I try to reset it, it immediately trips. (The water heater works when set to gas operation.) I could understand the breaker tripping if the electric operation switch was turned on, but it doesn't matter whether it is on or off. Any ideas, please?

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Old 11-05-2009, 10:00 AM   #2
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1960 Caravel
Edmonds , Washington
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Have you checked the heating element? If it is corroded it will cause the breaker to trip.


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Old 11-05-2009, 11:12 AM   #3
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1975 Argosy 24
Malakoff , Texas
Join Date: Apr 2009
Posts: 490
If you disconnect the wires at the HTWTR HTR(put elect tape or wire nuts
on the bare wires), then reset the breaker and see if it trips again. If it does,
then the problem is between the breaker and the unit. The simplest method
to eliminate everything that works will get you to what is really broken the
fastest. Be carefull...if the HTWTR HRT is faulty...a fellow could get a "shock"!
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Old 11-05-2009, 11:21 AM   #4
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1972 31' Sovereign
Lexington , Minnesota
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Sounds like you’ve got a dead short somewhere, or a bad breaker. I’d try disconnecting the hot water heater, tape or wire-nut the ends of the 110 vac feed wire, and flip on the breaker again. If the breaker still trips right away, then you need to work back towards the breaker. Do the same thing at the 110 vac switch that controls the water heater. If the breaker still trips, continue with the next step. If the breaker doesn’t trip, then either the switch is bad, or the wiring between the switch and the water heater is shorted.

Next, I’d unplug the trailer, and remove the breaker. If you have an ohm meter, check for a short on the black wire that was connected to the breaker and either the white neutral wire or ground. With the water heater still disconnected, that should read as an open circuit. If it reads zero or close to zero ohms, the short is in the wire itself. Perhaps it shorted where it passes through the frame or skin somewhere. Won’t be fun to track down in that case. Might be easier to just disconnect both ends of the wire, and run a new one from the breaker box to the water heater.

Of course, you could just replace the breaker as step one and see if that’s the problem. That is really the easiest thing to do, and if it works, you’ll be done in just a few minutes. If it doesn’t work, you’re out the cost of the replacement breaker.

Good luck, and be careful!

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