It must be checked by someone who knows what they are doing. There is no way for you to know.
you can press the pressure release valve until you have evacuated the refrigerant sufficient enough so that it won't be overcharged.
It means that you have a refrigerant leak, and will eventually lose all of your refrigerant. Then your AC won't offer any sufficient cooling, and if you run your AC with an inadequate amount of refrigerant, you'll eventually destroy your AC system. So it means that, if you don't want this to happen, you need to get the leak located and fixed. The presence of air in the AC system indicates a likelihood of a leak (or the leak) being on the low pressure (vacuum) side.
i dont know? ask ya mum
Is compressor running? If refrigerant charge is low it will not
What Ac refrigerant freon is required in 1989 BMW 7-Series? What Ac refrigerant freon is required in 1989 BMW 7-Series?
134a refrigerant
Many home AC units are sealed, and there is no way for a homeowner to add refrigerant.
Many home AC units are sealed, and there is no way for a homeowner to add refrigerant.
Well, we'd need to know what make, year, and model of car before that question can be answered. Not all automotive AC systems require the same amount of refrigerant.
How much refrigerant is needed recharge ac on a 2001 Pontiac montana
R134a
r22