Window leak

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Best to 100% remove the window. If foam seal behind the window lip, simply remove it. Then, apply butyl tape on the inside of window lip. Then, reinstall the window.

To make the window's outer lip look cosmetically good afterwards, simply apply clear ProflexRV (clear @ - Click Here - ) around the window's lip / RV wall (using masking tape to make its edges look smooth).

For a good video, surf: - Click Here -

As shown in above Video, very simple DIY using common home maintenance tools...

I believe it's the window because there is not a vent for the stove top fan (yet) and water passes right by the gutter on the top without a problem. I noticed a drip line on the lower left corner last week. I have to remove the spice rack to get to the top and pull out screws slowly. I sealed the door window a while ago and that was easy. I will take picture and post if I can ever figure out how to do that.

I had the exact same type of leak, found water on the countertop. I thought I do it right and pull the window but after taking out all the screws I found that the frame was so stuck to the side wall I was starting to deform the frame trying to pry it off. I just said the hell with it and siliconed the outside around the frame and it's been good for 2 years.

Ron W.

I picked up butyl tape to seal the frame but was also recommended to run sealant around the window frame

Ya, you could do it that way and hope that is your problem. Or you could watch several youtubes on the subject.
I recommend pulling the hole thing out and look for where the water is actually coming from the best you can anyways. Could be leaking from above the window and your just seeing where the water leaked onto the window from above. If you pull the window I like using

http://www.kasonind.com/index.php/products/fabrication_supplies/7513_tacky_tape/ tacky tape brand, see brand name inside of tube? That stuff works. Doesn't dry out in 3 or 5 years. That is why rv manufactures use the cheap stuff. Gets them over warranty period at half the cost. Stays like bubble gum for many, many years depending on how much sun it gets. Bending tape around corners is easy. As your putting tape onto the window frame just mash it with your thumb and it follow where you mash it, around corners. After you get the window and compression ring back in, Scrape of excess tape and In about 3 months after the compression ring does it thing more butyl tape will ooze out a little, maybe a 1/4 inch worth. Scrape that little bit off (I like to use a popsicle stick)Then put a little dab of sealant on top and sides.
When you get window frame out, mash your finger nail into your old tape. Is it dry or cracked or just a lousy job of install? If dry or brittle maybe it is time to re-caulk all windows. Already have new tape on hand in order to compare new tape with old. If I've missed anything PM me.
Hope this helps

If you just put a bead of silicone caulk around the window, there is a good chance that the silicone will fail and the window will continue to leak, perhaps into the frame of the TT, unnoticed. Silicone is a good sealant under compression but is lousy when sealing a butt joint exposed to weather and motion.

Since you already have the butyl tape, remove the window and do it right. Follow up after the window is installed with a bead of sealant around the top and two sides. I would use one of the Geocel Tripolymer sealants like Proflex RV.

Take your RV to a reputable dealer and have them do a SealTech leak detection. Costs $100 and will pinpoint where the leak is coming from.

Then, ask then how you should go about fixing it (just as a point of reference).

I have had SealTech tests done on my RV every two years. Every time they find leaks I didnt know existed.

I had a leak on the kitchen counter and it turned out to be around the exhaust fan vent for the stove and then was running down the inside of the wall and coming out under the window.

Buy clear silicone caulk and go around the window frame (outside). Tape off if you dont have a steady hand.

Take the window out.