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05-23-2017, 05:02 PM
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#1
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New Member
Join Date: May 2017
Location: Red Deer
Posts: 2
M.O.C. #19883
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sw10de hot water heater not working on electric
Just purchased 2008 3400rl, only thing not working seems to be hot water heater on electric. I am new to this game - we are just going through downsize and going full time. when i switch the heater toggle on it starts on propane okay and works. how do i get it to work on just electric - i switched the toggle off and no hot water. Any help appreciated
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05-23-2017, 05:18 PM
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#2
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Montana Master
Join Date: Apr 2017
Location: 1000 oaks
Posts: 954
M.O.C. #19630
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Open the outside door on the water heater. In the lower left area behind the gas tube there is probably a small black switch for electric, turn it on.
If not there you don't have a gas/electric heater. Gas only.
Let us know what you find.
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05-23-2017, 05:44 PM
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#3
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New Member
Join Date: May 2017
Location: Red Deer
Posts: 2
M.O.C. #19883
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i turned the small black switch on, electric still not working
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05-23-2017, 05:46 PM
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#4
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Montana Fan
Join Date: Feb 2016
Location: Brookings
Posts: 313
M.O.C. #18275
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Try the reset button on the water heater for electric.
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05-23-2017, 06:14 PM
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#5
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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Various problems reported from previous people with the same issue include;
Bad heating element
Bad or tripped thermostat/hi temp cutout
Bad switch (the little black one)
Loose neutral wire connection in J box on back side of water heater
Loose wire connection elsewhere
Tripped breaker
If you are comfortable troubleshooting 120 vac and have a volt/ohm meter, you can find a schematic wiring diagram on the Suburban web site.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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05-23-2017, 09:59 PM
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#6
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,701
M.O.C. #12947
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If you don't have the manual, go to this link to download a copy. It says it's the 6 gallon manual, but it actually covers a number of sizes. https://www.manualslib.com/download/...an-Sw6del.html
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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06-14-2017, 07:16 PM
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#7
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Montana Fan
Join Date: Dec 2011
Location: Livingston
Posts: 350
M.O.C. #12009
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My elections problems
I have a SW12DEL heats the water on electric 100 degrees than turns element on an off never getting any hotter. Gas works fine heats to 130. I have replaced stat, element and switch. I am going to pull it and check for loose connects at a/c box on top.
I have 122 volts inside at outlet and only 110..115 volts on element when it's on, is this normal?
This on a 2014 Montana 3850FL
Any ideas or thoughts are welcome.
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06-14-2017, 08:38 PM
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#8
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Montana Fan
Join Date: Aug 2012
Location: Fowler
Posts: 414
M.O.C. #12748
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There is a possibility that your element has burned out and needs to be replaced.
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06-14-2017, 09:30 PM
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#9
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Montana Fan
Join Date: Dec 2011
Location: Livingston
Posts: 350
M.O.C. #12009
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Quote:
Originally Posted by rmthelen
There is a possibility that your element has burned out and needs to be replaced.
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Brand new element
__________________
2014 3850FL
2008 F350 SRW
David and Liz
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06-14-2017, 11:40 PM
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#10
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Montana Master
Join Date: Nov 2012
Location: Rancho Santa Margarita
Posts: 633
M.O.C. #13025
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My little black switch went bad. bought a new one at a hardware store. Now it works.
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06-14-2017, 11:49 PM
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#11
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,701
M.O.C. #12947
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I would be checking the connections at the breaker first. Then check all the 120 volt connections going to the water heater. Your inside switch is 12 volts DC which goes to a relay in a box attached to the water heater, accessed by pulling the water heater out part way. Possibly you have a problem with that 12 volt DC to 120 volt AC relay. As long As the thermostat is the right one and your element is also the right one, you should be getting the correct water temp in the electric mode. You might also check the outside switch that is at the lower left corner of the unit outside. They have been known to develop burnt connections in the switch.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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06-15-2017, 09:16 AM
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#12
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Montana Fan
Join Date: Dec 2011
Location: Livingston
Posts: 350
M.O.C. #12009
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Quote:
Originally Posted by rohrmann
I would be checking the connections at the breaker first. Then check all the 120 volt connections going to the water heater. Your inside switch is 12 volts DC which goes to a relay in a box attached to the water heater, accessed by pulling the water heater out part way. Possibly you have a problem with that 12 volt DC to 120 volt AC relay. As long As the thermostat is the right one and your element is also the right one, you should be getting the correct water temp in the electric mode. You might also check the outside switch that is at the lower left corner of the unit outside. They have been known to develop burnt connections in the switch.
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Thanks for responding, done all that, the relay you are talking about is it in the control board in top of heater?
__________________
2014 3850FL
2008 F350 SRW
David and Liz
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06-15-2017, 07:59 PM
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#13
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,701
M.O.C. #12947
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Yes, that is what is in that box.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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06-15-2017, 10:11 PM
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#14
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Montana Master
Join Date: Nov 2012
Location: Rancho Santa Margarita
Posts: 633
M.O.C. #13025
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The small black switch outside at the bottom left corner of the WH is cheap and easy to replace. You can check it with a multi meter to see if it is bad. Very easy to get to also.
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06-15-2017, 10:12 PM
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#15
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Montana Fan
Join Date: Dec 2011
Location: Livingston
Posts: 350
M.O.C. #12009
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Thanks all
__________________
2014 3850FL
2008 F350 SRW
David and Liz
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06-16-2017, 08:03 AM
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#16
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Montana Fan
Join Date: Dec 2011
Location: Livingston
Posts: 350
M.O.C. #12009
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Faulty stay found
__________________
2014 3850FL
2008 F350 SRW
David and Liz
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