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Inside AC unit working fine, but outside fan is not spinning and the unit is buzzing

Posted on 6/10/21 at 9:52 pm
Posted by Triple Bogey
19th Green
Member since May 2017
5985 posts
Posted on 6/10/21 at 9:52 pm
Blowing air, but it’s not cold. I had the capacitor changed out last year. I’m thinking it’s the motor, but unsure.
Posted by Lion4Life
Louisiana
Member since Sep 2012
424 posts
Posted on 6/10/21 at 10:02 pm to
Capacitor
Posted by Triple Bogey
19th Green
Member since May 2017
5985 posts
Posted on 6/10/21 at 10:04 pm to
It started turning when I moved the fan blades with a stick, but quit shortly after. Hard to believe it’s the capacitor when I just had it changed out last year.
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5268 posts
Posted on 6/10/21 at 10:18 pm to
quote:

It started turning when I moved the fan blades with a stick, but quit shortly after. Hard to believe it’s the capacitor when I just had it changed out last year.

Still could be a bad capacitor - many cheap Chinese capacitors fail within a year. Only way to know is to check it with a multimeter with a capacitance setting. If it’s the capacitor replace it with a good American made capacitor like AmRad.

But it could be bad bushings in the condenser fan motor causing it seize up as it gets hot. Had to replace my condenser fan motor a couple years ago for this reason. How old is your unit?
This post was edited on 6/11/21 at 8:59 am
Posted by AtticusOSullivan
Member since Mar 2016
2268 posts
Posted on 6/10/21 at 10:28 pm to
Agree, capicitor.
Posted by armsdealer
Member since Feb 2016
11508 posts
Posted on 6/11/21 at 12:01 am to
quote:

It started turning when I moved the fan blades with a stick, but quit shortly after. Hard to believe it’s the capacitor when I just had it changed out last year.


Sounds like a capacitor. You can have more than one, and lots of brands are just crap. Try to find something made in Japan or the US. There are so many brands but Amrad and Mars should be available, the Japanese have spread out and make capacitors all over Asia and a lot of US brands started making capacitors in Mexico, you need to see the Capacitor or order from a trusted source to get one made in a good plant.
Posted by meeple
Carcassonne
Member since May 2011
9377 posts
Posted on 6/11/21 at 5:20 am to
Reminds me, how do I open up my condenser panel and check my capacitor without getting shocked?
Posted by Civildawg
Member since May 2012
8564 posts
Posted on 6/11/21 at 5:46 am to
Starting capacitor
Posted by Hamma1122
Member since Sep 2016
19825 posts
Posted on 6/11/21 at 6:13 am to
Fan motor bad
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5268 posts
Posted on 6/11/21 at 9:13 am to
quote:

Reminds me, how do I open up my condenser panel and check my capacitor without getting shocked?

Numerous YouTube videos on this. Just look that those videos produced by HVAC techs.

Couple to get you started.

Of course always pull your HVAC electrical power disconnect first before removing and checking a capacitor. Will be right next to the condensing unit.

LINK

LINK
This post was edited on 6/11/21 at 9:25 am
Posted by meeple
Carcassonne
Member since May 2011
9377 posts
Posted on 6/11/21 at 3:06 pm to
Thanks!
Posted by LifeTimeTiger2
Member since Apr 2017
419 posts
Posted on 6/12/21 at 1:15 pm to
Temporary solution while you waiting to get fixed. Rig a hose nozzle to spray a mist on the coils and it will cool pretty good.
Posted by gnrLSU
Member since Jan 2011
78 posts
Posted on 6/12/21 at 6:07 pm to
Capacitor
Posted by gnrLSU
Member since Jan 2011
78 posts
Posted on 6/12/21 at 6:07 pm to
Capacitor
Posted by p0845330
Member since Aug 2013
5700 posts
Posted on 6/12/21 at 9:47 pm to
Chinese capacitor
Posted by Trout Bandit
Baton Rouge, LA
Member since Dec 2012
13269 posts
Posted on 6/12/21 at 9:57 pm to
Fan motor isn't working right baw.
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