Monitor Control Panel (2021 337RLS)

[Carldebenedetti]

My 7.5 fuse pops every time I use the switch’s , i was told it could be the board. Has anyone had this problem? Or replace the board. My water heater switch won’t work is my biggest problem.
Thanks for any help.

[howson]

My 7.5 fuse pops every time I use the switch’s , i was told it could be the board. Has anyone had this problem? Or replace the board. My water heater switch won’t work is my biggest problem.
Thanks for any help.

What water heater is in your '21 337RLS?

Is anything else affected when the 7.5A fuse blows?

Since you're new, what level of experience do you have troubleshooting electrical circuits and do you own (and know how to use) a multimeter?

Howard

P.S. Welcome to the forum!

[Carldebenedetti]

Dometic GC6AA0E
I have a little bit of electrical experience. I would need to go buy a volt meter. Got one at home, not much help on the road.

[howson]

Dometic GC6AA0E
I have a little bit of electrical experience. I would need to go buy a volt meter. Got one at home, not much help on the road.

So does anything else fail to work? Awnings? Interior lights? Exhaust fans? Check everything that runs on 12vDC to see if it all works (you don't have to blow the fuse, just remove it and do your checks).

[howson]

Carldebenedetti -- of special interest: check the overhead lights above the bed to see if they work with the 7.5A fuse removed.

[Carldebenedetti]

Tried the lights above the bed, didn’t work. guess what, the wires were yanked out. Next problem, figuring how to put that mess back together. Everything else seems to work. It just stuff in the control panel.

[SteveHal]

Had the same problem on my 337 last week!

It was caused by the wires under the bedroom slide documented in several other posts on the forum. On my 337, built Jan of 2021, that 7.5 fuse worked: the over the bed lights, the blue light outside/under the slide, the monitor panel indicator lights, the hot water thermostat in the bathroom, and the panel switch for the tank heaters.

Taking the bottom wood panel out of the under the bed storage revealed the bed moving in and out had rubbed the WAGO wire connectors off and wires were touching other wires. Luckily, the fuse blew and all other switches were off, so no power to any of the devices and nothing fried but the fuse.

Will change the position of the wires and make permanent fix when we get home from camping next week.

[Carldebenedetti]

Ok getting better, separated the wires under the bed, cleaned them up so nothing is touching. Replaced fuse, water heater working now. I will worry about the wires when I get home. Try to figure how to reatt

[howson]

Ok getting better, separated the wires under the bed, cleaned them up so nothing is touching. Replaced fuse, water heater working now. I will worry about the wires when I get home. Try to figure how to reatt

See https://gdrvowners.com/forum/operati...l-fuse-blowing for more on the wires-under-the-bed issue.

Howard