gas leak or wrong wiring
An air conditioner blows out heat
Portable air conditioner will not blow cold air. What to do?
If it does blow just not cold air you should see if it needs to be recharged
There are several causes that an air conditioner is only blowing cold air for a short period of time then only blow hot air and then not going back to cold. This is especially common in the hotter weather including in the 90s and above. It could be from the air conditioner freezing over. You can fix this by simple trouble shooting and if that doesn't work call a repair man.
The system can be low on refrigerant
diagram for 1999 chev subarban air conditioner
you would need to add freon
You have to get it recharged. you have no freeon left which makes the cold air
You are low on coolant to the heater core.
Coming out of the vents around 43 degrees
THE CAUSE for this is that when your cold air is on the petrol is used to create air. and that is how cars create cold air
i have a pioneer travel trailer, air conditioner the compressor does not come on please advise is there internal switch?