Recomend take to a professional without knowledge of AC system you may do more harm than good
July, 9, 2012 AT 3:04 PM
The low pressurt valve is near top of condenser but when A/c system requires charging, it is not as simple as that. There must be a leakage somewhere and recharging is not going to work. For testings etc, the job is best left to professionals as special equipments are required for the job and unnecessary discharging of freon into the atmosphere is strongly advised against.
July, 9, 2012 AT 3:19 PM
Too much refrigerant will do a LOT of damage so I also recommend having it looked at professionally.