|
Let me share with you an experience I had with my A/C unit that even a pro service outfit couldn't resolve. My unit's evaporator was freezing up, and seemed to not have a lot of airflow from the registers. It would freeze up after a short time, then wouldn't blow any air at all. I checked the filter and blower and looked ok. Had an A/C service check it and the guy said pressures were off and the scroll compressor was going bad, drawing too many amps. Was going to cost over $2000 to repair. I told him no thanks, didn't seem right. I looked up the specs and measured the compressor amps myself with a clamp-on meter and they were in spec. I went back to the closet unit, pulled off the bottom cover, and started the blower with the safety interlock switch on the cover pushed in. What was happening was the blower was sucking the fiberglass sound insulation pad away from the side of the unit and blocking off one side of the squirrel cage. With the blower off it would fall back into normal position, which is why I missed it the first time. When the blower turned on it would take a few seconds or sometimes a minute for the insulation to come loose. The factory didn't use enough adhesive to hold it in place. I took the insulation out and the A/C worked great from then on. This was 3-4 years ago. My point is - sometimes it's something really simple that can cause a problem, and that damn repair company tried to rip me off over something that cost nothing to fix.
|