Thor Forums

[simidrm]

Chances are the refrigerant that is in that system is not R-134a and if your not sure how much is in the system you could overfill it and that will burn up the compressor.

I would do as mentioned earlier put a thermometer in the a/c duct as close as you can get to the evaporator with a/c on max and see what the out temp is, as it should be about 25-35 degree colder than room temp,but remember that reading will vary depending on the sun load and humidity, so close all the blinds to reduce the sun load.

Did you check the a/c intake filter, if its plugged up then not enough airflow is passing by the evaporator core which would cause a warmer out temp.

If the system is low on freon you will have to find out the type it takes and the amount
it holds, find the source of the leak repair it and evacuate the whole system and charge to the proper amount, thats the correct way.

Some of those units come precharged with freon and they wont have a schrader valve inline,but might have ports on the high and low side of the compressor.