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Old 06-06-2015, 02:47 PM   #1
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Cool What Does This Switch Do?

Having concluded that I have an Atwood hot water heater (G6A-8E) that uses LPG only (no electric heat), here is my mystery.

On my control panel there are two HW tank switches: Gas HW tank and Electric HW tank. The Gas HW switch heats up my HW tank just fine. If I instead flip on the Electric HW switch, it lights up blue, but nothing happens ... no hot water, the switch only lights blue.

So ....... just what is the Electric HW tank switch for The Gas HW switch heats up my water even if the Electric HW switch is turned off.

Is this a factory mis-wire intended for a dual gas-electric HW heater that was not installed even though both switches are present?
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Old 06-06-2015, 07:51 PM   #2
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You do not have an "Atwood hot water heater". The electric water heat switch is a mystery however you can easily convert your water heater to dual fuel and put that switch to good use.
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Old 06-06-2015, 08:01 PM   #3
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You should have a switch on the WH itself accessible from the outside. Even if your sending AC power through the distribution panel, you still need to physically turn it on in order to use the electrical element.

If it hasn't been used before you will also need to remove the cotter pin from the outside switch. From there you can utilize the power panel to turn it on and off.
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Old 06-06-2015, 08:15 PM   #4
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I don't know what the Duck says but Amazon says this water heater is a dual fuel (propane and electricity) heater.
Amazon.com: NEW ATWOOD RV WATER HEATER G6A-8E SIX 6 GALLON GAS WATER HEATER DSI WITHOUT DOOR: Automotive


CORRECTION: my error. So sorry!
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Old 06-06-2015, 08:16 PM   #5
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Quote:
Originally Posted by Yarome View Post
You should have a switch on the WH itself accessible from the outside. Even if your sending AC power through the distribution panel, you still need to physically turn it on in order to use the electrical element.

If it hasn't been used before you will also need to remove the cotter pin from the outside switch. From there you can utilize the power panel to turn it on and off.
There ain't no electric element. Its a LP DSI water heater.
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Old 06-06-2015, 08:17 PM   #6
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Quote:
Originally Posted by Yarome View Post
You should have a switch on the WH itself accessible from the outside.
While this is true for a Suburban water heater, it's not (always?) true for an Atwood.
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Old 06-06-2015, 08:17 PM   #7
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I believe they use a standard panel with a standard number of switches. My Coachmen Mirada has a couple of switches that do nothing and the dealer covered those in the walk-thru.
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Old 06-06-2015, 08:19 PM   #8
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OK, Duck! I'm going back to sleep. Wake me when I can confuse some other issue!
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Old 06-06-2015, 08:22 PM   #9
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Go to your own link and reread it. It's a LP DSI water heater. Yes it does use 12v for LP ignition, not to heat the water.
You're right. See my post before yours AND my correction to my original. Sorry.
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Old 06-06-2015, 08:38 PM   #10
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Originally Posted by Mr. Dan View Post
I don't know what the Duck says but Amazon says this water heater is a dual fuel (propane and electricity) heater.
Amazon.com: NEW ATWOOD RV WATER HEATER G6A-8E SIX 6 GALLON GAS WATER HEATER DSI WITHOUT DOOR: Automotive
That's what I saw as well, but further reading... some of those ARE LPG only, with a $50 upgrade option for electric, and electronic ignition.

So the second breaker.. I have no idea. It "could" be for the igniter, but if it's operating without it on the main breaker, I would leave it off. It might be pre-wired for the electric option and just supplying VAC to a nearby outlet that isn't currently being used.
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