Good Sam Club Open Roads Forum: Class C Motorhomes: Electric hot water
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shadowpup

Cave Junction,Oregon

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Posted: 01/26/19 01:28am Link  |  Quote  |  Print  |  Notify Moderator

My elect. hot water heater has always worked until the last time I used the MH. It was working (water hot, red light on rocker switch lighted) at night, got up in AM rocker switch not lighted and no hot water. Reset all 110 breakers, still not working. Turned on propane heat and it worked. ?????


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ronfisherman

SE Michigan

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Posted: 01/26/19 03:20am Link  |  Quote  |  Print  |  Notify Moderator

If breaker was tripped. I would suspect a shorted out heating element.


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donn0128

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Posted: 01/26/19 07:07am Link  |  Quote  |  Print  |  Notify Moderator

Which WH? Suburban uses a small switch outside on the heater that are prone to failure. Also they use resettable limit switch packs. That could have tripped.





BB_TX

McKinney, Texas

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Posted: 01/26/19 09:04am Link  |  Quote  |  Print  |  Notify Moderator

The inside water heater switch is likely a 12v switch used to energize an interposing relay that sends 120 vac to the water heater. Check your 12v fuses.

houstonstroker

Houston, TX

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Posted: 01/26/19 09:24am Link  |  Quote  |  Print  |  Notify Moderator

Is there a chance the element was energized with no water in the tank? If so the element burned out. Easy to replace.


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Old-Biscuit

Verde Valley

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Posted: 01/26/19 10:13am Link  |  Quote  |  Print  |  Notify Moderator

Atwood uses same DC source, Same set of T-stat/ECO and same circuit bd/2A fuse......propane works

So problem could be Bad Element, Bad DC Rely/AC wires

Got a voltmeter....know how to check/trace circuit?
All can be tested in outside compartment except for DC Rely and element which are under the cover on backside of tank
Check White wire and Yellow wire for DC with Electric switch ON and water temp cool.
Got DC on those two wires then issue is at/with DC Relay---AC wires or element

[image]

* This post was edited 01/26/19 10:23am by Old-Biscuit *


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ron.dittmer

North-East Illinois

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Posted: 01/29/19 04:49pm Link  |  Quote  |  Print  |  Notify Moderator

My electric heating element burned up many years ago when our rig was a few years old. I checked the heating element using a volt meter.

After I completely drained the hot water tank from the outside with our rig on our flat driveway, I unscrewed and removed the element, but water tried to rush out. I quickly reinstalled it and got lots of old towels. When removed the water kept coming and coming, the towels could not contain so much water..

I called Atwood about it. The service tech told me 1/2 gallon of water stays inside to protect the electric heating element in case someone accidentally left it on while plugged in. He also said the design is such that freezing temps will not harm anything.


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shadowpup

Cave Junction,Oregon

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Posted: 03/23/19 12:37am Link  |  Quote  |  Print  |  Notify Moderator

Problem solved. New rocker switch.

bobndot

USA

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Posted: 03/23/19 12:59am Link  |  Quote  |  Print  |  Notify Moderator

shadowpup wrote:

Problem solved. New rocker switch.


Tnx for the update, good job. [emoticon]

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