Dometic water heater thermal fuse trips on electric

[Styoung]

Hello, I'll start off my saying we're full timers so we use our hot water tank on a pretty constant basis. So far we're about 2 months in and been through about 3 or 4 thermal fuses. The strangest part though is that they end up being triggered while we're using electric as we rarely used propane for the water heater until recently. The tank in question is a Dometic WH-6GEA.
Each time there's been an issue replacing the thermal fuse has restored operation. And as you may expect as a result when the electric wasn't working neither was the propane due to the fuse being blown. Pretty much everything I've read though suggests that the thermal fuse is intended as a safety mechanism for the propane operation of the tank though so I'm having trouble figuring out what the issue actually is that's tripping the fuse in the first place.
Does anyone have any insight into what I should actually be looking for?
I guess for additional detail I've switched over to using propane and haven't had any issues so far, though because we're concerned about the fuse blowing we only run the propane when we know we're going to use the hot water immediately.

[wmtire]

See page 17 here on the owners manual for your water heater we keep in the library section. This manual also has wiring schematics for your water heater

https://www.forestriverforums.com/fo...do=file&id=264

[KyDan]

Welcome to FRF!
A quick google search found this thread in another forum... but it's helpful I think.
https://gdrvowners.com/forum/operati...-thermal-fuses
See post #9 especially.
Good luck!!

[Styoung]

Originally Posted by KyDan

Welcome to FRF!
A quick google search found this thread in another forum... but it's helpful I think.
https://gdrvowners.com/forum/operati...-thermal-fuses
See post #9 especially.
Good luck!!

Thanks! I did see this post, but unless I completely misunderstood it this still relates to a problem with the gas portion triggering the fuse since they talk about the burner tube.
My problem stems from running it on only electric and somehow the cutoff being triggered

[Larry-NC]

Originally Posted by Styoung

Thanks! I did see this post, but unless I completely misunderstood it this still relates to a problem with the gas portion triggering the fuse since they talk about the burner tube.
My problem stems from running it on only electric and somehow the cutoff being triggered

How hot does the water get? Dangerously hot?
If the electrical-side thermostat is defective and lets the water get dangerously hot, the thermal fuse will open. A defective thermostat will continue to blow thermal fuses.

[Styoung]

Originally Posted by Larry-NC

How hot does the water get? Dangerously hot?
If the electrical-side thermostat is defective and lets the water get dangerously hot, the thermal fuse will open. A defective thermostat will continue to blow thermal fuses.

When the electric side was was running I would certainly describe it as very hot. Near scalding in instances for sure. Maybe I'll try replacing the thermostat and see how that goes

[KyDan]

Originally Posted by Styoung

When the electric side was was running I would certainly describe it as very hot. Near scalding in instances for sure. Maybe I'll try replacing the thermostat and see how that goes

That's what I would try next! Fairly simple and not too expensive.
Please let us know how that works.

[Styoung]

Originally Posted by KyDan

That's what I would try next! Fairly simple and not too expensive.
Please let us know how that works.

Sorry for the slow update took awhile to get the part and all that fun. I've had the new thermostat installed for about 24 hours now and so far no issues! Before it was triggering the thermal fuse within just a few hours so I'll take that as a good sign. Appreciate the help guys!