Robert Hill
- Mar 5, 2015
- 112
- Joined
- Mar 5, 2015
- Messages
- 112
Hi all,
I've got an AC fan which is part of an extraction system. Most of the time it starts up fine. However recently (and seemingly in combination with cold misty weather (fan is outside)) The fan won't start when power is supplied. When I give the motor shaft a little spin and then supply power the fan then runs fine.
This lead me to think it is the start capacitor that is at fault. This is because once running the fan continues to run suggesting the run capacitor is fine as is the motor itself. Also because from a stationary position the motor cannot start turning but from a gentle spin the motor then can start turning. This would suggest that the start capacitor has grown weak meaning it can't get things going from a stand still but can get them going with a bit of help.
What do you guys think?
Want to make sure I'm dealing with the right issue or starting in the right place as it is quite an effort to access the fan and I'd rather not keep going up and down to it.
Thanks in advance.
Bob
I've got an AC fan which is part of an extraction system. Most of the time it starts up fine. However recently (and seemingly in combination with cold misty weather (fan is outside)) The fan won't start when power is supplied. When I give the motor shaft a little spin and then supply power the fan then runs fine.
This lead me to think it is the start capacitor that is at fault. This is because once running the fan continues to run suggesting the run capacitor is fine as is the motor itself. Also because from a stationary position the motor cannot start turning but from a gentle spin the motor then can start turning. This would suggest that the start capacitor has grown weak meaning it can't get things going from a stand still but can get them going with a bit of help.
What do you guys think?
Want to make sure I'm dealing with the right issue or starting in the right place as it is quite an effort to access the fan and I'd rather not keep going up and down to it.
Thanks in advance.
Bob