What kind of loud noise do you have? Squealing? Grinding? Crunching? A bearing noise or . . . maybe something caught in the blower wheel? A leaf? A plastic bag or candy wrapper? Etc.?
PHM
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It is a squealing noise that continues for some minutes. Sometimes if you just bear with it, it...
My AC/heater has problems. It started when all but the highest setting for the blower stopped work. I decided to live with it for a few months by just having the AC/heater on full blast or completely off. Now while it still works, it makes an ungodly racket when it is on full blast. I...