Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches September 14, 2025 ...

A/C water getting inside.

August 09, 2012, 12:06:42 am

I have an 89 Grand Villa with Coleman roof A/C units. I recently landed in a very hot humid place. I just recently have had water leaking from the units inside the coach. I suspect this is condensation moisture due to the high humidity. Any thoughts on how to prevent this?
I've had this coach for about 5 years but lived in Sourthern California where it's dry. I'm now in southern Louisiana where it is anything but dry. I'm new here and am very happy to have found other folks who enjoy these great coaches!

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Re: A/C water getting inside.

Reply #1 – August 09, 2012, 09:26:30 am

I had the same problem when I went from California to Texas. I solved the problem by insulating all of the exposed metal in the air box, on both air conditioners. The insulation is available through McMaster-Carr.

Low-Temperature Polyethylene Foam Rubber Insulation
Temperature Range: -330° to 210° F
Heat Flow Rate (K-Factor) @ 75° F: 0.25
Density Range: 1-2 lbs./cu. ft.
Color: Black

The closed-cell construction of these flexible foam sheets controls condensation even at low temperatures. Can be used outdoors if coated with latex paint (sold separately). Install with contact adhesive (sold separately). Meets ASTM E84 25/50 for flame and smoke.

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Re: A/C water getting inside.

Reply #2 – August 09, 2012, 04:25:19 pm

Take off the inside cover and there are 3 spring loaded bolts that need tightening. If that doesn't work, you will need to replace the gasket. Very simple.

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Re: A/C water getting inside.

Reply #3 – August 09, 2012, 05:46:59 pm

Check the fins on the evaporator by looking up from the inside and see if they are clean or if there is a lot of dirt on them, they may need to be cleaned.

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Re: A/C water getting inside.

Reply #4 – August 09, 2012, 10:54:23 pm

Great idea!! Thank you. As think about it i'm sure that will solve my problem..

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Re: A/C water getting inside.

Reply #5 – August 10, 2012, 12:12:10 am

Take the inside ceiling cover off and see if maybe the leak is not from the system but a leak past the roof seal to unit. I had that on the unit above the bed on the last GV and it just needed tightening down to roof and that was that. Seal had shrunk I guess.
John H

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