You can overcharge the a/c system. This causes too much head pressure in the compressor hendering it from cooling. Usually when you overcharge, it damages o-rings and seals in the system causing it to lose freon and a/c oil.
Check the temperature control cable
sounds like you need some freon.
you may be low on freon and jsut need a good charge of R134a
I suppose when you say " the air stops blowing but the unit is still running" you mean the air that is blowing is not cool. If so, then the thermostat is faulty or needs to be set a lower temperature setting. If the unit blows cool for a few minutes and not cool for a few minutes, then cool again, etc. (called short-cycling), the unit is low on freon.
Periodically check your freon levels. For most of us, that is once a year unless the air conditioner is not consistently blowing cool air. Freon is no longer available to uncertified people, and newer cars use another type of coolant.
Most likely. You just need add Freon. Real easy an cheap fix. If your Freon is full and your AC still not working. Probably gonna be your AC pump. That's not a cheap fix.
Freon is a coolant/refrigerant used in A/C's or refrigerators to cool the air. It is illegal in some states so check before use. California mandates R-134a as a alternative.
The Freon may have lost its ability to cool or the Freon may not be circulating due to a faulty pump. Freon does not loose it's ability to cool. There is either insufficient Freon for the size of the system indicating a leak, or the pump is wearing to the point where it can no longer provide sufficient compression of the gas. In either case, a trained tech is required and should be able to provide an immediate diagnosis.
If you got to any auto parts store, they will have bottles of r134a that you can buy that have gauges in the handles that will tell you when you have enough in it. If you system wont cool or is out of freon you have a leak and should get it check to have a repair done, an ac system with out freon has no lub either and that will lead to compressor burn out. The freon cools the air and lubs the compressor.
Freon, or same, has likely leaked from the system. You need it recharged. Likely need to fix the leak. Call a professional.
I'm sorry to hear that your air conditioner is still blowing hot air even after adding freon. While low refrigerant (freon) levels can indeed cause this issue, there might be other factors at play, such as a leak in the system or a malfunctioning component. It's a good idea to have a professional HVAC technician inspect and diagnose the problem to ensure your AC is working efficiently and providing cool, comfortable air. Stay cool!
Car airconditioning works similarly to the air con in your house. As freon is compressed it cools, in the lines of a air conditioner is freon. The compressor pressurises the freon in the lines and those lines run through a condensor box that has air flowing through it. Those lines cool, and as such the air blowing by them cools and comes out the car vents. This is simplistic but accurate.