| you really need to give much more info,,,,,what kinda system do you have? package heat and air,,,,,,,is heat elect. or gas? how old is a/c? when it quits cooling ,does the compresser stop running and then kick back on? is your lowside line (the bigger) tubing sweating all the time it is running?,is the big line frosting up after running for a while? is the filter clean? with more info we might can help you,,,,,,thanks |