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Old 09-13-2014, 08:15 PM   #1
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2001 27' Safari
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Leak at ac unit

Any suggestions for tackling a leak at the AC? I have a 2001 Safari with a Dometic AC unit. Water is collecting in the "tray" covering the AC unit inside and also traveling above the headliner and dripping on the counter. It only happens in heavy driving rain. I've been up on the roof to take a look. Sealant around the unit seems to be in good condition. Can water be getting in the side vents of the AC unit?
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Old 09-13-2014, 08:22 PM   #2
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I am thinking "clogged"'or otherwise restricted drain line ... If the trailer is not level, water may be finding another way out.
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Old 09-13-2014, 08:24 PM   #3
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Trailer is definitely not level. Where do I find the drain line?
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Old 09-16-2014, 10:53 PM   #4
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Sorry, did not see the post...

Well, the drain line should be coming out on the street side..underneath... just inside the curved lower panel.
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Old 09-17-2014, 08:51 AM   #5
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The clogged drain line mentioned above is the usual suspect, and the first thing to troubleshoot. That plastic tray that the AC sits in is designed to catch the condensate that drips out of the AC unit, and channel it into the drain line, which runs between the inner and outer skins, and usually is visible as a small diameter plastic hose sticking through the belly skin in the vicinity of the wheel wells.

Water can also get into this tray in a heavy rain. The tray should have drain holes drilled all around its perimeter. These holes are there to let rain water out, but don't extend into the channels that catch the condensate. Since you are having your leakage during heavy rains, it could be that these holes are either clogged with schmutz, or have been sealed by an overly ambitious caulker--something to check on your next visit top-side.

good luck!
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