Question about Fedders X Chassis A3X05F2B Air Conditioner

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A/C unit compressor shuts off

My Trane (model 2TGB3F18A-36A) home A/C unit (two years old) starts fine, then after a couple of minutes you hear a rattling noise and the compressor shuts off, meanwhile the blower will still run for some minutes afterward (and you also hear gurgling noises coming from it). The A/C will only work for 2 to 4 minutes each time it shuts off, will stay off for a long time before restarting and showing the same problem all over again. My setting is on automatic. Outside temperature (I am in Miami, Florida) is around 82 degrees, inside setting is at 75 degrees. You will ear the rattling in the inside unit (I believe it comes from the blower) and also in the outside unit. What can it be?

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You will need a technician to check the system pressures with a gauge. Souns like the compressor is fighting high pressure in the coil that is outside.. Try this.Right after the compressor chugs to a stop, un plug unit and run cool garden hose water over the outsife coil for a few minutes, then see if the compressor will start again any sooner yhan before. If so. High pressure is the problem. But you still need a tech to adjust the refrigerant level. Make sure air is blowing out from the coils. You may want to clean the coils before our little test Hose it out with pressure yo remove any buildup on the coil and fins. Spray with 409 if you wish, it would help remove the dirt. Let it drip dry for half an hour and see if the compressor still shuts down. Make sure any water coming from the a/c itself is draining so the fan doesn't throw it around. Good luck Ned

Posted on Oct 05, 2009

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