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Air conditioner blowing hot air and no suckson in the return unit, we had a guy we know came over tuesday and put freeon in it and cleaned the out side coil and it blew colder aie but today is a different story please help me

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Well from what you've said I'm afraid it sounds like you have a significant refrigerant leak that needs to be repaired by a qualified professional. Heres how it's done: Any remaining refrigerant is removed from the system and stored in a tank with a refrigerant recovery machine the system is then pressurized with dry nitrogen and a trace amount of refrigerant. You look for the leak visually by looking for oily spots along the refrigerant circuit with soap bubbles to pinpoint the location in conjunction if needed with electronic leak detector leaks can also often be run down using sonic detectors and florescent dye with a black light. When a leak its repaired the procedure is repeated until all the leaks are all found and repaired and the system holds pressure over a period of time the system is then pulled in to a deep vacuum, the amount of oil lost with the leaks is estimated and replaced, the system is pulled into a vacuum again and then charged to provide the appropriate superheat specified by the compressor manufacturer It can be very tedious, time consuming and expensive so be prepared.Sorry for the bad news Hope it works out for you.

Posted on Jun 12, 2008

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