When blowing rain is pounding against a louvered window that last thing you want is to keep it open. But that is what happens when the crank knobs fails to shut tight the windows slats allowing water to blow in. This type of window tends to be located in the bathroom or bedroom area. The slats can get out of alignment from road vibration or over use. Then the crank arm is forced past its allowance in an attempt to shut the window and it too fails. The slat support arms are also prone to rust, causing the slats to stick in one position or remain shut.
A variety of models have experienced windows that lose their seal and become permanently fogged up so you cannot see out when the sun shines directly on them. The seal between the outside frame and window glass separates. A fogged window requires replacement. This same issue is responsible for window leaks in which place you can also replace the rubber that beds the window glass in the frame.
Fleetwood Bounders made in 1994 had a manufacturing defect that caused the window to blow out of the vehicle while it was moving. The problem was due to deterioration of the tape that secured the glass to the aluminum frame.
Fleetwood issued a recall in July 2010 for not installing an emergency window in the 2010 Encounter model and the 2011 Storm Class A, manufactured in December 2009 through May 2010. Usually the emergency window is installed in the bedroom area to offer another escape exit in addition to the main entry door. An emergency window opens up all the way with two simple latches allowing for fast escape from the RV. The fix for the recall is to install and emergency window.