Which capacitor?

[ragart]

Pump makes a humming sound when started and otherwise does nothing. Pretty sure it's a bad capacitor, but I have a run capacitor and a start capacitor. Is there any way to know/educated guess which one it is?

Thanks

 

[ragart]

update: I was able to turn it on and get it started by spinning the nut that turns the motor. Once I gave it a spin, it kicked on and kept going.

 

[mknauss]

Pump Capacitors - Further Reading

www.troublefreepool.com

 

[JamesW]

Replace both of them.

You can get a multimeter that tests capacitance if you want, but it's cheaper to just buy the new capacitors.

A bad run capacitor will usually bulge at the top when it is bad.

A start capacitor will usually leak brown fluid when it's bad.

How old is the pump?

Do you have pictures of everything?

 

[ragart]

Replace both of them.

You can get a multimeter that tests capacitance if you want, but it's cheaper to just buy the new capacitors.

A bad run capacitor will usually bulge at the top when it is bad.

A start capacitor will usually leak brown fluid when it's bad.

How old is the pump?

Do you have pictures of everything?

Thanks for the reply! I can only find one capacitor. It looks fine, though. I'm getting a new one tomorrow and I will try to swap it out and see what happens. The pump is in the beginning of its 4th pool season. Pool season here lasts about 3-4 months.