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 > Hot water heater out of control

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rdjmm

Depends on the time of year

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Posted: 08/24/20 08:00am Link  |  Quote  |  Print  |  Notify Moderator

Jayco TT 2015 Our water heater has run a muck! It doesn't matter if it is on gas or electric, our water heater has scalding hot water com out of the faucet. Turned it off but it almost seems like it keeps running.I know that's impossible.
LOL. Any info would be a great help. Thanks

naturist

Lynchburg, VA

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Posted: 08/24/20 08:18am Link  |  Quote  |  Print  |  Notify Moderator

My guess, stuck thermostat. Or maybe bad control board. Possible also somebody fiddled with that thermostat. Dunno if that is possible. They used to be adjustable but might not be any more.





enblethen

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Posted: 08/24/20 09:11am Link  |  Quote  |  Print  |  Notify Moderator

Water coming out of the water heater is very hot normally. You then use the mixer valve to add cold water to make it useable and to allow a 6 or 10 gallon water heater to provide sufficient amount of heated water.


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mchero

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Posted: 08/24/20 09:44am Link  |  Quote  |  Print  |  Notify Moderator

Make and model of the HWH please!
If it's an Atwood G16-EXT it could be the mixing valve on the backside.


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Old-Biscuit

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Posted: 08/24/20 10:17am Link  |  Quote  |  Print  |  Notify Moderator

IF an 'EXT' model -----uses Mixing valve on backside to control hot water out to 130*F *tank water heated to 160*F then mixed with cold water via mixing valve
Typically the hot out from tank clogs and you only get luke warm then cold

If a '4E' model ----gas & electric use same set of t-stats
Normal temp T-stat (Brown wires)....140*F
ECO (energy cut off/high temp t-stat) 180*F...triggers RED Fault Light and locks out any refiring until reset

IF normal t-stat is NOT tight against tank wall and tank surface/t-stat dirty then normal will not open until higher temp is reached but before ECO trips

Check the T-stat terminals/spade connectors tight/clean and that t-stat is beign held tight


Is it time for your medication or mine?


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midnightsadie

ohio

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Posted: 08/24/20 12:19pm Link  |  Quote  |  Print  |  Notify Moderator

lot good stuff, if it was too hot I think the safety valve would pop off.and you would see water flowing to the ground. put a temp gauge in the hot water see just how hot ,hot is.

mchero

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Posted: 08/24/20 12:21pm Link  |  Quote  |  Print  |  Notify Moderator

Even better stuff if we are given a make/model.

rdjmm

Depends on the time of year

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Posted: 08/24/20 01:16pm Link  |  Quote  |  Print  |  Notify Moderator

Atwood GC6AA

mchero

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Posted: 08/24/20 02:48pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the model number! No mixing valve on that model. I'd suggest you replace both the thermostat and ECO.
I suggest this site for parts;
PDXRVWHOLESALE.COM

rdjmm

Depends on the time of year

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Posted: 08/24/20 03:53pm Link  |  Quote  |  Print  |  Notify Moderator

Looked at thermostat and eco also the thermostat shut off. There scorched wires on both parts. Thanks for all your help everyone. We know you always have the answers or at least know where to point someone in the right direction. Thank you all.

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