[JRTJH]

Let's look at what the OP provided us (which apparently is only one side of a "sketchy" story)......

"I discovered 2 windows had water in the frames after a storm. Took it to Folsom Lake RV for warranty. The pressure tested my trailer to find 7 windows leaking. Keystone is denying the warranty."

There is no indication of "HOW" the windows are leaking. Is it at the butyl seal behind the flange, at the frame, around the glass insert or another location? Now, his trailer has 9 windows. The two in the ends of the slide are the same style. The two at the ends of the rear of the trailer are the same style, all (emphasis on ALL) the remaining windows are different styles, different opening patterns, different shapes. So, there are 7 different shapes/styles of windows in the trailer.

What are the odds of 7 windows, all different shapes and opening patterns, all being defective and needing replacement? Not needing resealing or reseating, but replacement? I'd suspect that when Keystone got that request for warranty replacement, they also thought, "How the heck is this even possible?".... With the typical, sketchy warranty justification done by most dealerships, I'd suspect that there's no way on God's green earth" that Keystone (or any other manufacturer) is going to ship 7 replacement windows, all of which are different shapes to a dealer because all are "defective from the window manufacturer".... That just doesn't happen with windows from different lines, different shapes, different styles of opening, and possibly from different factories....

If I were at Keystone, the first thing I'd do with that claim is say, "No, I'm not shipping 7 windows to you, claim denied. Resubmit and tell me what is leaking and why the windows need replaced."

I can see a very remote possibility that there was a bad batch of putty tape, even a bad installation on one or maybe two windows, but 7 of 9?

So, while I feel the OP's frustration, I'd strongly suspect there's something very, VERY fishy at that dealer's service department. The odds of 7 windows, all different styles, all leaking, all on the same trailer, when there's not numerous reports of other trailers having the same problem? (trust me, if it was a "Keystone wide issue" this forum would be overflowing with complaints).....

If it was my trailer, I'd be at the dealership, talking to the general manager and the service manager (not the service writer) asking how is this even possible??????