4001 LK Water Leak

[Bob]

Remove the 3 screws from the curved section ( or you can take out all the scews & remove the whole Panel) & pull back to see fitting's, hand tighten all. (no wrench) Hand tight.

[Ford truck guy]

Originally Posted by Budman

Have you already removed the curved panel? When we went through these problems, I removed the curved panel and put bowls, towels, even paper in various areas to help determine where the drips were coming from as it was never leaking when I was looking. Then one day I saw it dripping from the red valve like I mentioned in the other post. I found 1 on ebay which was not cheap either, I think it was about $70 for 1.
Anyway, good luck because it is frustrating trying to troubleshoot an intermittent problem.

Can you post a link for that ?

Joe

[NW Snowbirds]

Joe, I think he is referring to the hot water tank bypass valve used for winterizing. The valves that come from the factory have a plastic body which is known for cracking at the screw in fittings. It can be replaced with a bronze valve from swan industries in Oregon.

[Budman]

Thetford 94228 B&B Molders Fresh Water By-Pass Valve

This is what I replaced.

[Ford truck guy]

Thanks.. My tank bypass is part of a larger plate that has 4 valves......

[Budman]

Yes mine is like that also. This is one of the valves on there.

[Ford truck guy]

mine -

[Gunnerbob59]

Ford Truck Guy,

I also have a 2020 3991RD and am experiencing water leak in the front cubbie area coming from behind the removable carpet wall at the bend area. When I would raise or lower the front jacks during flushing of black tank, I would have water (clean) dripping out from bottom of plastic belly pan. I found a leak on the fitting for the ice maker in cabinet adjacent to the fridge. Secured the valve to ensure water leaking has stopped. At this point, I'm not sure what else could be allowing water to get to the storage cubbie. I see you had to "seal" all the screws for the shower track? This may be my issue as well. Did you remove the screws and apply silicone and reinstall, or did you simply silicone over the top of each of the screws. I'm wondering if the leak can be from the black tank flush valve that is mentioned in this thread. However, I do not know where it is located. On my Montana, it was under the bathroom sink. Do you know where it is? Also, any suggestions on where to check for water leaks would be greatly appreciated. Thanks in advance,
Gunner Bob

[Gunnerbob59]

Originally Posted by Ford truck guy

Same problem on my 2020 391RD..what a bugger to find and fix... easy fix once I found the darn issue

Ford Truck Guy,

I also have a 2020 3991RD and am experiencing water leak in the front cubbie area coming from behind the removable carpet wall at the bend area. When I would raise or lower the front jacks during flushing of black tank, I would have water (clean) dripping out from bottom of plastic belly pan. I found a leak on the fitting for the ice maker in cabinet adjacent to the fridge. Secured the valve to ensure water leaking has stopped. At this point, I'm not sure what else could be allowing water to get to the storage cubbie. I see you had to "seal" all the screws for the shower track? This may be my issue as well. Did you remove the screws and apply silicone and reinstall, or did you simply silicone over the top of each of the screws. I'm wondering if the leak can be from the black tank flush valve that is mentioned in this thread. However, I do not know where it is located. On my Montana, it was under the bathroom sink. Do you know where it is? Also, any suggestions on where to check for water leaks would be greatly appreciated. Thanks in advance,
Gunner Bob

[Bob]

The black tank flush valve is in the wall at the washer /dryer hookup panel. mine was leaking / replaced. You have to follow the two white holes.

[Ford truck guy]

Gunner Bob,

My leak was on the backside of the Nautilus panel located in the wet bay.. There was a fitting that had a hairline crack in it.

I replaced the nautilus panel, made sure all fittings were tight and I am GOOD TO GO NOW ! !