brinliev
Jun 16, 2009, 06:42 PM
I have a comfortmaker A/C unit that is 7 years old when the stat calls for air all I get is a constant humming noise from the outside unit. Also when it is humming it is getting hot I have been able to start the fan by spinning it and tapping the fan motor however that is getting harder to do. After reading some postings today I removed the capacitor today and had it tested at a HVAC shop and they said it tested 47 and it was labeled as 50 so it was fine. I then removed the blower motor took it apart to see if there was noticeable problems. I did not see anything so I put it back together and it fired up with no humming. When it satisfied the stat it shut off and when it called for air again the humming started but the fan did start after a delay. I also should note that I believe the fan motor says RPM 840/2spd does that mean 2 speed fan motor and what would be my next move.