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Question Window fog/ cloudy

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Grizzlee

RVF Supporter
Joined
Nov 12, 2025
Messages
13
Location
New Hampshire
RV Year
2007
RV Make
Fleetwood
RV Model
Discovery 39V
RV Length
39’
Chassis
Freightliner XC
Engine
330 hp Caterpillar C7 Diesel Engine
TOW/TOAD
2005 Mercedes Benz SL 500 toad
Fulltimer
No
Hello Travelers.
I’m about to pull the trigger on our first RV. Been looking at it for a few weeks and test drive it today. Almost positive we will buy it. Here’s my question. 2007 Fleetwood Discovery 39v the drivers side window is the most clouded and a few of the side windows are slightly clouded. It seems to be between two panes of glass. Is this a normal occurrence? Is it fixable without replacing the windows? Is there a magical procedure that only RV’ers know about? Or is replacement the only cure?
I anxiously await replies. It’s not a deal breaker by any means, but clear windows would be much preferred.

Thanks in advance!
 
I have one that is a little cloudy. Based on humidity it sometimes goes away.
My plan is to remove the window form the RV then remove the double pane glass. Re-seal it without separating the glass. Then drill a small hole on each side of the seal and inject nitrogen in between the panes to remove any moisture/oxogen. Then seal the 2 holes back up. Will see if that works.
 
Nice! That sounds like a viable plan of action. Thanks!
 
If the window has been fogged for sometime, the condensation becomes etched on the glass. The only recourse is replacement. There are some self help you tube videos should you want to attempt the fix yourself. other solutions are fogged window experts but they are far and few between - Hudson Florida and Searcy Arkansas come to mind. Another solution and cheaper is remove the fogged window and replace with a single pane window.
 
If the window has been fogged for sometime, the condensation becomes etched on the glass. The only recourse is replacement. There are some self help you tube videos should you want to attempt the fix yourself. other solutions are fogged window experts but they are far and few between - Hudson Florida and Searcy Arkansas come to mind. Another solution and cheaper is remove the fogged window and replace with a single pane window.
That is true, but mine clears on is own in low humidity so I feel I won’t have that problem.
 
Definitely no humidity here now. I’m thinking it’s been that way for a while. Probably going to have to replace or repair myself.
 
Definitely no humidity here now. I’m thinking it’s been that way for a while. Probably going to have to replace or repair myself.
So it never goes away? Even for a short time?
 
I don’t know. I’m about to purchase the coach used.
 

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