Hot water heater "sort of" works in electric mode

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TonyL

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Joined
Dec 10, 2017
Posts
1,016
Location
UK
It's possible that the element has blown and ruptured, that would allow water in the tank to short the two exposed ends of the element and allow current to flow creating what is in effect an electrode boiler. The high resistance would limit the effect of the element, but as electricity takes the least path of resistance, would not necessarily cause a breaker to activate.
I have seen this happen in commercial and residential immersion heaters, and see no reason why it couldn't happen in an RV heater. If you have a multimeter, check the resistance of the element, it should be quite low. Also look for damage near the bend in the element.
 

John From Detroit

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Apr 12, 2005
Posts
27,222
Location
Davison Michigan
Electic elements will crud up no matter what you do.
Now if you want a lot of hot water.. you can get a higher temp T-Stat.
That may help
else when you shower use (Atwood heaters) both electric AND gas)
I went "Slower" with my electric.. helps on 30 amp sites.
 

CharlesinGA

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Joined
Oct 6, 2017
Posts
1,851
Location
50 miles south of Atlanta, GA
This is what Kirk posted, for the visual persons who didn't follow the link.
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