Question about Dometic Rooftop RV Air Conditioner

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RV AC is working fine, but the water is leaking from the ceiling Where is the drain tube on the unit, The AC unit is a roof type, Duo Therm serial # 43404934, Part # 3105459

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CamperRoofRepairKits

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If your recreational vehicle's (RV) air conditioner is leaking, then it is probably time to replace the rooftop gasket that seals the unit. As this gasket ages, it becomes brittle, hard, and unable to seal the opening, thus permitting moisture to enter the RV. Replace an old gasket with a new one and eliminate a frustrating air conditioner leak. Another common culprit of leaking from the air conditioner into your RV is a clogged drain pan. Sometimes the drain pan gets clogged with dirt, leaves and other debris, prohibiting the water from draining through the small hole in the pan and onto the roof. Should this happen it is an easy fix and just requires a bit of clean out.

Posted on Aug 18, 2020

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Normally, the condensate will drain out of the unit onto the roof and off the edge to the ground. Remove your cover inside (probably 2 screws) and tighten the 4 bolts you will find inside. If they are tight, go to your RV supply place and get new roof gasket. Remove the AC and insert the new gasket and resecure the AC to your roof.

Thanks for your question @ FixYa.com

Posted on Jul 26, 2011

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