Capacitor belly-up

[colonelkirby]

My filter pump wasn't running this morning and I think the capacitor is bad. I have a spare that was intended for a booster pump that was abandoned. Can I use this spare to replace the filter pump capacitor that went belly-up? The one that went belly-up is on the left.

TIA

 

[ajw22]

Replacing a 30 uf capcitor with a 25 uf will work but your pump will run suboptimal. You should get a 30 uf capacitor for it.

Read ...

Can you change the size of capacitors on a pool pump?

 

[swamprat69]

Get the 30 uf capacitor! A run capacitor uf rating is a balance between needed starting torque and running efficiency under load that has been determined when the motor/compressor is run within a specific set of parameters. Deviation from the specified uf rating can cause both loss of efficiency and early failure of the motor. It is ok to replace a 30uf/370V capacitor with a 30uf/440V capacitor, you can always go higher on the voltage rating (Max) but never lower.

 

[colonelkirby]

Get the 30 uf capacitor! A run capacitor uf rating is a balance between needed starting torque and running efficiency under load that has been determined when the motor/compressor is run within a specific set of parameters. Deviation from the specified uf rating can cause both loss of efficiency and early failure of the motor. It is ok to replace a 30uf/370V capacitor with a 30uf/440V capacitor, you can always go higher on the voltage rating (Max) but never lower.

30 it is. Pump is up and running. Thanks y'all!