Question AC quit blowing cold, slowly getting warmer over apx. 3 month period. Had friend come charge system, (Lic.by state)after apx 1 day started blowing hot again. Friend came back by looked at system, did not have equip. to test but said it was obvious that I had leak. Called local contractor, they came out said that Evap. unit was bad. they replaced evap. unit ( Split System) the next day back to hot, they returned and charged unit again. Next day hot, they returned and said that I had bad compressor. I believe they missed diagnosed the problem originally. Need a professional opinion on this. I still have the old evap. unit, is there a test to see if it was bad.
Answer Did the contractor say there was a leak in the evap. coil? If they replaced the evap. coil and had to recharge it the next day it would seem that there is still a leak in the system. You can seal and pressurize the old evap. coil to see if the leak was there. If the system stops working from loss of freon after only 1 day you must have a fairly large leak even if it is on the high pressure side of the system. It should be fairly easy to find.
