Fan works, compressor works, but no cold air, model 58925.603

SOURCE: I have a dometic duo-therm. No air coming through ducts.

I have a new Montana Mountaineer with a Dometic Duo Therm as well and experience something similar.

It appears that there are two options:
1. Open the vents in the unit and all the cold air will blow out of the AC as that would be the shortest path and the there is hardly any air coming out of the ducts.
2. Close the vents in the unit and it will force all the air through the ducts.

We let the air blow straight out of the unit during the day and then force it through the ducts at night to force it in the bedrooms. You could also open the vents in the unit part ways to get a combination.

I didn't figure it out immediatly either, but just look close at the unit and you can see that you can close the vents on the unit itself

SOURCE: Duo Therm 13.5K Won't blow cold air?

needs freon. valve must be installed on unit in order to charge. if you know nothig about freon, call a repairman. Check craigslist.com

SOURCE: I have a Duo Therm Roof top Camper air conditioner

how old is unit and does it have refrigerant in it

SOURCE: My duo therm brisk air roof mount ac unit is

yep have the leak fixed and properly charged.

SOURCE: can my duo-therm air conditioner on my rv be recharged?

These unit can be recharged. 134A. You NEED A SERVICE TECH THAT KNOWS HOW TO CHARGE UNIT.RUS