Overhead Bunk Water Leak on 2020 Minnie Winnie 31K

[rvfam9]

Good morning, Working on our 2020 Minnie Winnie 31k and noticed some water under the overhead bunk mat. I currently have the fan on there and plan on pressurizing the bunk to find leaky seams, but my question is has anyone opened this area up and just replaced the front portion between cross brace and curve? I did notice where the AC drips on driver said the seam is partially open so I’m thinking that’s what caused this. Any help is greatly appreciated!

 

[Eagle5]

Hi rvfam9,

1. Do you have the optional nose cap on the outside leading edge of your Minnie Winnie 31K?
2. Do your five clearance lights still work, and do they show signs of leakage?

Eagle5

 

[rvfam9]

All 5 lights are working with no signs of issues. Here is a photo of the nose cap.

 

[rvfam9]

All 5 lights are working with no signs of issues. Here is a photo of the nose cap.

You can see where the ac runs down the side and along that open seams, I’m thinking that’s the issue.

 

[Eagle5]

I would start with a careful inspection of the self-leveling sealant on the roof, and anything that looks like it has be scuffed with a tree branch, etc, should be cleaned with rubbing alcohol and have additional self-leveling sealant applied. Please use only what Winnebago recommends; here is where to look it up:

Sealants Callout Sheets

 

[Jfelten]

Good morning, Working on our 2020 Minnie Winnie 31k and noticed some water under the overhead bunk mat. I currently have the fan on there and plan on pressurizing the bunk to find leaky seams, but my question is has anyone opened this area up and just replaced the front portion between cross brace and curve? I did notice where the AC drips on driver said the seam is partially open so I’m thinking that’s what caused this. Any help is greatly appreciated!

My bathroom skylight leaked and followed that same path, above the driver bunk. It caused a major electricial outage. Thank goodness it was still under warranty. I would start there.

 

[bcoldpro]

Good morning, Working on our 2020 Minnie Winnie 31k and noticed some water under the overhead bunk mat. I currently have the fan on there and plan on pressurizing the bunk to find leaky seams, but my question is has anyone opened this area up and just replaced the front portion between cross brace and curve? I did notice where the AC drips on driver said the seam is partially open so I’m thinking that’s what caused this. Any help is greatly appreciated!

I have a 2016 Minnie Winnie 22R that leaks in the same interior area of the nose cap. I do not have the additional nose cap cover like is shown on your rig. I chased that leak for years, laid awake many a night trying to figure out a fix. Download the "Sealant Call Out Sheet" for your unit to show which sealants are needed. I built a wooden scaffolding so I could get up top to take a good look and use as a working platform. I found some disappointing poor quality control when my rig was built. There is a metal channel that runs the width of the roof where the roof panels join. The screws securing the channel were not stainless steel, one set of screws were shorter than the rest and there were a lesser number of screws at one end of the channel than the remaining length. I have very minor damage in the area of the upper bunk, but do have some "bubbling" in a couple of spots on the outer nose. You might have to dig out the sealant that is at the top edge of your nose cap and lay a good bead across the entire length with the appropriate sealant as is shown on the Sealant Call Out Sheet.