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 > Water leak inside RV from HVAC running

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RV Hero

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Posted: 06/26/19 11:23am Link  |  Quote  |  Print  |  Notify Moderator

I discovered a cheap and fast solution.
I have a Winnebago 2009 RV, Since I have owned it I have always had a leak inside on humid days and ac running. Service calls have not solved it.
I finally researched and investigated and did it myself. Problem was manufacturers installation. They installed the roof unit tight to the roof. so tight it plugs the drain holes, Solution is simple plastic wedge installed from outside both sides to lift HVAC of roof so drain holes will both work free for condensate water, my pan is dry as a bone now. I also have pictures, How can I post this?

opnspaces

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Posted: 06/26/19 12:09pm Link  |  Quote  |  Print  |  Notify Moderator

I don't think new users can post pictures. However you can upload your pictures to a hosting site like imgur.com and then post a link to the pictures.

As far as the leak, I like the ingenuity, but I would be concerned about the lifted AC unit now letting rain water in. You might try getting a new AC gasket and replacing the squashed one. A new gasket is 1 inch thick and when you install it you only tighten it down to compress about 1/2 inch. This will give you a good seal joint and also give the drain holes clearance.

Gasket


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RV Hero

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Posted: 06/26/19 12:38pm Link  |  Quote  |  Print  |  Notify Moderator

One more note, I took my garden hose and sprayed water around unit like a rain storm would and had no leaks inside. Did not want to solve one problem and end up with a different one.

Old-Biscuit

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Posted: 06/26/19 12:42pm Link  |  Quote  |  Print  |  Notify Moderator

opnspaces wrote:

I don't think new users can post pictures. However you can upload your pictures to a hosting site like imgur.com and then post a link to the pictures.

As far as the leak, I like the ingenuity, but I would be concerned about the lifted AC unit now letting rain water in. You might try getting a new AC gasket and replacing the squashed one. A new gasket is 1 inch thick and when you install it you only tighten it down to compress about 1/2 inch. This will give you a good seal joint and also give the drain holes clearance.

Gasket


THIS^^^^
2009 gasket----overtightened/crushed
Skims are not the answer

New gasket is 1" thick and should be compressed about 1/2"....that is for new one.

The hold down bolts should be 'snug'.......so what is 'snug'?
Hand tighten then 1/4 turn with wrench.

Torque.....20 INCH Pounds (Notice: That's INCH Pounds not foot pounds). Very few folks have and know how to use an INCH torque wrench so that is why 'Just SNUG'


New versions of gasket have plastic tabs....just tighten until tabs touch


Is it time for your medication or mine?


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Posted: 06/26/19 03:20pm Link  |  Quote  |  Print  |  Notify Moderator

We can all tell him he has a bad gasket but he won't listen because he FIXED IT [emoticon]

RV Hero

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Posted: 06/26/19 04:53pm Link  |  Quote  |  Print  |  Notify Moderator

you are right. it is fixed and no leaks from anything, gasket would be great if manufacture fixed it but they won't. and why should I spend $500 for someone to remove unit and put new gasket? Thanks anyways

CharlesinGA

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Posted: 06/30/19 07:25pm Link  |  Quote  |  Print  |  Notify Moderator

Roof A/C is generally not centered over the hole, but rather, offset, so there is a good overhang of the heaviest part of the unit, aft of the hole. Usually, there are two or more rubber blocks, the same fairly dense material the gasket is made from, glued to the bottom of the A/C. If these blocks are not present, the heavy overhang will sag and can touch the roof. It sounds like the OP installed wedges to space the unit up level, like the original rubber blocks would have. They must be missing.

Charles

DavidandDayle

Guelph, Ont

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Posted: 06/30/19 07:48pm Link  |  Quote  |  Print  |  Notify Moderator

We had same problem -- water dripping from A/C. Tech diagnosed overly squished gasket and replaced it. problem solved, but water had entered the roof and front.


David and Dayle


4x4van

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Posted: 07/23/19 09:28am Link  |  Quote  |  Print  |  Notify Moderator

RV Hero wrote:

you are right. it is fixed and no leaks from anything, gasket would be great if manufacture fixed it but they won't. and why should I spend $500 for someone to remove unit and put new gasket? Thanks anyways
[emoticon]

Or you could replace the $20 gasket yourself.


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4x4van

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Posted: 07/23/19 09:29am Link  |  Quote  |  Print  |  Notify Moderator

duplicate

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