As already stated the non ducted system simply blows air into your rv from its central roof top location.
Rv ac system not cooling.
There are several potential causes for the ac not keeping the air cool in your rv.
When it comes to the sealed system all brands coleman duo therm carrier and intertherm work by using the basic principals of refrigeration.
Once the temperature was 76 degrees the compressor on the ac would stop running.
Rv air conditioner non ducted.
Usually it can be a broken capacitor that stops your ac unit from blowing cold air and lets it blow warm air instead.
So how do you identify and repair these issues.
The ac unit could be old.
The fan would still run but it was no longer cooling the air.
It could simply be too hot outside for your ac to keep up.
The two most common complaints are not cooling and leaks.
Unless you have two ac units.
It s not unusual for rv ac units to not cool as well after a few years of use.
Also a duct system is easily modified if there are cooling problems.
Rv ac blows cold then warm what causes this to happen is not that difficult to diagnosis.
One can face varying issues with camper ac s like the rv ac shuts off on its own or the ac turns on and off repeatedly or sometimes the ac wont blow cold air at all.
With the thermostat the colder warmer knob turned all the way cold the air conditioner would cool the inside of the rv to about 76 degrees.