Question about Dometic Rooftop RV Air Conditioner

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Location of Drain holes on Duo-Therm Model 630035.321

Trying to find drawings showing location(s) of drain holes from condensation pans on Duo-Therm Rooftop A/C Model No. 630035.321

Believe mine has plugged drains -- unit is 4 yrs old and used full time... also as heatpump.

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  • Anonymous Mar 25, 2014

    Indoor unit Model number location



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Good place to start is up on the roof. Look way under the unit (hard to see some times) along the bottom, between where the gasket sits on the roof and metal bottom of unit. Should see small round or similar sticking down from unit. There will be a hole in the side of them. Poke around with a wire or something to open them up. If you don't see water/condensation running across your roof from unit when it's operating, (usually in 2 directions, 1 each side of unit) then yup, there plugged.

Posted on Aug 14, 2008

  • Mike Butler
    Mike Butler Aug 16, 2008

    Update, Probably just holes in that pan, nothing sticking down. Sorry, had coleman in mind. If needed, take cover off and clean from above.



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