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My roof-top air unit turns on when I set the thermostat to cool but I get no air through the ducts. After a couple of minutes, the unit shuts itself off. It is a Duo Therm unit on a 2004 Wildwood 38' Travel Trailer set in an RV park. Any ideas anyone???? It worked fine last season which was it's first full year in use.
Hello Scott
it sounds to me as the "fan" is NOT spinning and the unit is tripping off since it is freezing up the coils
take the cover off see if fan will spin---some units have small place to oil the fan motor.
rich in Va.