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08-21-2021, 09:26 AM
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#1
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Junior Member
Join Date: Aug 2021
Location: Phoenix
Posts: 4
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New member, quick question
Hey all,
I am new to full time rv living, been a month and so far I am enjoying it. As a traveling electrician, it affords me the ability to chase the high paying jobs and spend as little as possible on lodging expenses.
I am trying to figure out what this switch on my control panel does. I have one labeled dsi water heater and one labeled electric heater. Is the switch labeled electric heater for the water heater or the furnace? There’s also a switch on the water heater itself for turning on the electric element.
Picture attached.
Thank you
Model is Cougar 27reswe
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08-21-2021, 10:04 AM
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#2
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,476
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The DSI switch when turned on, starts the flow of gas to your water heater and on my trailer you will here the spark click. A red light comes on and once ignition (direct spark ignition) occurs and the water heater is lit, the light goes out. The water heater also has an electric heating element to augment the propane heat. On my water heater the switch is an inconvenient location on the outside on the heater itself. We only use propane heat in the summer when it is warm out and in the winter run both. The water will heat faster with both propane and electric heating the water.
__________________
wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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08-21-2021, 10:11 AM
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#3
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Junior Member
Join Date: Aug 2021
Location: Phoenix
Posts: 4
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Thanks for the response, what I’m trying to figure out is what the switch labeled electric heater goes to.
Just like yours, I also have a switch outside on the water heater to turn the electric element on.
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08-21-2021, 10:14 AM
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#4
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Senior Member
Join Date: Jan 2020
Location: Roseville
Posts: 292
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It turns on the electric element on the water heater. You also need the switch on the water heater turned on. It is a safety measure so you don't turn on the electric element with no water in the tank.
__________________
Jim and Carole
Roseville, MN
2018 RAM 3500 DRW, Diesel, Long Box, Air Lift Bags - 2023 Fuzion 421
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08-21-2021, 10:14 AM
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#5
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,476
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Quote:
Originally Posted by Motox_727
Thanks for the response, what I’m trying to figure out is what the switch labeled electric heater goes to.
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As noted, there is an electric heating element IN the water heater. When you do turn on the heat, be it propane or electric, ensure that the water heater tank is full first. On mine, I open the pressure relief valve (on outside under the water heater cover) and make sure water runs out before trying to heat the tank. If the tank is heated without water, the electric element will fry.
__________________
wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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08-21-2021, 10:28 AM
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#6
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Junior Member
Join Date: Aug 2021
Location: Phoenix
Posts: 4
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Perfect, thanks for the information it’s much appreciated.
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08-21-2021, 03:43 PM
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#7
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Senior Member
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
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For faster hot water recovery you can run the water heater on both gas & electric simultaneously without problems.
The only furnace switch I've ever seen is on the thermostat.
__________________
Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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08-23-2021, 03:35 AM
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#8
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Senior Member
Join Date: Aug 2013
Location: Saginaw Mn
Posts: 1,732
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Welcome from northern MN.
__________________
2012 Keystone Retreat 39 FDEN
99 Dodge One Ton Diesel Dually
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08-24-2021, 09:14 AM
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#9
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Senior Member
Join Date: Dec 2019
Location: Oregon High Desert
Posts: 1,554
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Hello Moto, and welcome to the forum!
Enjoy your travels and stay safe!
__________________
Gary & Deb (44 years)
RV: Keystone 2013 Alpine 3495FL
TV: 2014 RAM 3500HD Laramie Long Box, 6.4 HEMI, 4x4, 4.10's, with Mopar Puck system, and a B&W Companion hitch.
Retired Firefighter/EMT.
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