A/C Unit Fan Not Running After replacing capacitor
#1
07-07-22, 09:50 PM
A/C Unit Fan Not Running After replacing capacitor
Hello all, hoping there is someone that can help.
We have a tempstar unit. It is quite old and of course with the hot weather this week. Our A/C fan stopped running but would kick on. We replaced the capacitor, and after doing so, it kicked on briefly, but triggered the circuit. Now, it won't turn on at all.I am thinking that this could have blown the disconnect fuse, after we changed it, I realized we didn't turn off the actual furnace itself, so I was wondering if that could be why?
I would appreciate any input!
We have a tempstar unit. It is quite old and of course with the hot weather this week. Our A/C fan stopped running but would kick on. We replaced the capacitor, and after doing so, it kicked on briefly, but triggered the circuit. Now, it won't turn on at all.I am thinking that this could have blown the disconnect fuse, after we changed it, I realized we didn't turn off the actual furnace itself, so I was wondering if that could be why?
I would appreciate any input!
#4
07-08-22, 09:00 AM
The condenser and furnace should be on separate fuses/breakers so the opening of the fuse/breaker doesn't affect operation of the other even though both are operating during a thermostat call for cooling. What arrangement do you have? I am assuming you are talking about the condenser fan because the condenser also has a compressor motor. What are the ratings of the old and new capacitor?
#5
07-08-22, 09:48 AM
Group Moderator
Welcome to the forums.
You replaced the capacitor on an old fan motor hoping that was the problem.
It may be just a defective motor.
If the breaker protecting the condenser is now tripping and you feel the fan is causing the problem.... disconnect it and see what happens.
You replaced the capacitor on an old fan motor hoping that was the problem.
It may be just a defective motor.
If the breaker protecting the condenser is now tripping and you feel the fan is causing the problem.... disconnect it and see what happens.
#6
07-08-22, 10:10 AM
I think you may be right about the motor; I was just hoping for a simpler fix that I could quickly do by myself. I tried to reset them once more, and I could actually here a click noise at the unit, but nothing else after that.
#7
07-14-22, 10:33 AM
Just wanted to provide an update. It turns out that the original problem was the fan motor. I ended up having to replace our disconnect as well as it shorted out too. Once everything was replaced, it runs like normal and we have AC now. Thanks for the help!
