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Old 07-15-2012, 09:49 PM   #1
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120 volt WH but no switch on CP

I'm puzzled. On my 2003 Sahara Safari I found a breaker in my panel in the bed room labeled water heater. upon inspection of the WH I found a recepticle and power cord that is plugged into it. I don,t have a switch on the contol panel for the 120 volt element. Need some help to determine if I need a switch installed. Maybe it was an option that was not hooked up.


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Old 07-16-2012, 04:57 AM   #2
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Our '04 Monaco product has the 110v switch near/next to the slide switches.
What "control panel" are you referring to?

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Old 07-16-2012, 06:02 AM   #3
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My Beaver had a WH switch inside the cabinet over the bed which was next to the breaker panel
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Old 07-16-2012, 09:38 AM   #4
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Jim, Two ways to "switch ON" the HWH's 120V service:

#1 is just a simple 120-rated switch...which might be the 120VAC breaker itself (or the poor-man's switch which is merely to plug it in when needed; unplug it when not needed).

#2 switching method is via 12VDC which controls a relay (the relay is mounted in a black box that is mounted on the front of the HWH (where the 120VAC cord arrives at the HWH). If you have such a "black box", you can pop it open to see if there is a relay inside, but even better: if there IS a relay inside, you'll see other wiring arriving at the box....and this carries the 12VDC relay-ON (energized) / relay-OFF (de-energized) voltage. Hopefully this will help you solve your mystery.
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Old 07-16-2012, 10:03 PM   #5
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Thanks for all the input. I went switch hunting and found it behind the gas valve. Its a small rocker on/off switch. I turned it on and after a few secons I could hear the water beginning to heat. This brings up another question. Does the electric heater cancel the gas or work with it? Now I can save gas while on shore power and if they both work together, I will get faster recovery while showering.
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Old 07-16-2012, 10:16 PM   #6
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Works in conjunction with the gas for quicker recovery. Our WH has the motor aid, gas and electric. When on the road the water is heated as we drive by the engine coolant. When we have full hookups I just use the electric element unless we need quick recovery (showers of wash a load or two), then I run both.
Also, be careful when using the electricity. If you turn the element on and there's no or not enough water in the tank you'll burn the element out in just a very short time, like 30 seconds, maybe less.
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Old 07-16-2012, 10:29 PM   #7
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Thanks for the information. I read somwhere about the engine assisted heating. Thats a good idea if you need hot water ehile traveling and you already have hot water when you stop. Even though I don't post much I read a lot on this web site. Lots of good info and poeple.


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