Condenser Fan Problem

Problems related to residential installations.

Condenser Fan Problem

Postby risktaker99 » Sat Aug 27, 2011 11:22 pm

The issue is I replaced a dual start capacitor with two singles with the same capacitance-- 45uf at 370 VAC. The dual capacitor was 45uf and 5uf at 370 VAC. I realize now that the Fan motor calls for a 5uf capacitor. The symptom I was experiencing before I replaced it/them was that the fan motor would not come on. Now, the fan starts but after about 3 minutes it shuts down with the compressor continuing to run. Can I assume that this is because I have a 45uf cap vs. a 5uf ??? Do you think I did any damage to the motor by using this smaller capacitor?
risktaker99
Minimal
 
Posts: 2
Joined: Sat Aug 27, 2011 10:04 pm

- Condenser Fan Problem

Postby risktaker99 » Sun Aug 28, 2011 4:03 pm

I don't understand your reply. What does "*" mean?
risktaker99
Minimal
 
Posts: 2
Joined: Sat Aug 27, 2011 10:04 pm

- Condenser Fan Problem

Postby heatseeker » Mon Aug 29, 2011 11:04 am

Did you put a 45 mfd cap to your fan motor? If so you screwed up if not your motor is shot if indeed you did put a 5mfd cap on it. Live and learn.
heatseeker
Most Valued Contributor
 
Posts: 542
Joined: Wed Jul 06, 2011 9:10 am

- Condenser Fan Problem

Postby Freon » Sun Sep 04, 2011 9:35 am

You need to get a 5mfd capacitor for the fan immediately!! Hopefully all that has been happening is the fan motor has been shutting down of thermal safety. A capacitor is specifically matched to a motor go provide the correct hp and rpm. When you used the 45mfd you most likely increased the motor's output hp to beyond its design limits causing it to overheat. Hopefully there's no damage to the windings.
Freon
Most Valued Contributor
 
Posts: 703
Joined: Sat Jun 18, 2011 11:26 am


Return to Residential

cron