Duo model therm has optional heat, but is not currently set up for the optional heat. What do I need to add the optional heat? which part and what is the process for upgrading.

SOURCE: duo therm air conditioner

my duo therm air works beautifuly all day but at night when we go to bed it seams to turn on and shut off rapidly. what could be wrong?

Mike Butler

• 6674 Answers
• Posted on Aug 14, 2008

SOURCE: Location of Drain holes on Duo-Therm Model 630035.321

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.

SOURCE: need manual for duo therm model #58915

Yes.

SOURCE: i have a duo therm brisk air model 57915-001 leak

Could be the drain path is clogged.. Take the cover off & see if you can get it cleaned..

SOURCE: How do I install a blower motor in a duo therm

ITS NOT EASY. YOU NEED A LONG SET OF ALLENS TO LOOSEN BLOWER WHEELS. THIS IS A  DUEL SHAFT MOTOR , BACK COIL NEEDS TO BE PULLED AWAY FROM MOUNT WITHOUT BENDING COPPER. MOTOR BOLTS 3 OF THEM HAVE TO BE REMOVED AND WHEN BOTH BLOWERS ARE REMOVED AND WIRES REMOVED THEN IT CAN BE REMOVED . THE PROBLEM IS THAT THE NEW MOTOR IF IT IS NOT FROM DUO THERM YOU WILL HAVE TO CUT SHAFT TO RIGHT SIZE AND WIRES MAY NOT BE SAME COLOR. IF IT IS SAME MOTOR FROM DUO THERM YOU CAN CUT WIRES AT OLD MOTOR AND WIRE NUT THEM COLOR BY COLOR.