US Motors Pool Motor- Which Capacitor?

[LMK17]

Our pool motor has been burning through capacitors at a rate of about 1/year or sooner. On taking a closer look at the capacitor, I suspect it’s not the correct one. Can anyone let me know if this is the correct capacitor for this motor and if not, what capacitor should I replace it with?

It’s a US Motor Model K63CXEPW-4765
Current capacitor is a 370 VAC 50 MFD (I think it’s a run capacitor and we need a start capacitor?)

 

[Texas Splash]

I agree that cap does seem a bit suspicious. I've been poking around the internet but can't confirm on my end. We can ask @JamesW for some help.

I have to ask ... how old is that single speed? Can you post a pic of the serial number on that other label? I can't help but wonder if you're burning through caps either because the one you are showing may not be correct, or the motor itself is simply reaching the end of its service life.

 

[JamesW]

Check with inyopools.com.

They should know.

What capacitor did it come with?

Can you show the wiring compartment?

 

[LMK17]

I have to ask ... how old is that single speed? Can you post a pic of the serial number on that other label? I can't help but wonder if you're burning through caps either because the one you are showing may not be correct, or the motor itself is simply reaching the end of its service life.

I have no idea how old the pump is. We’ve been here 6 years, and it came with the house. I’m pretty curious myself. I can‘t quite tell how to determine the age from the serial number.

Check with inyopools.com.

They should know.

What capacitor did it come with?

Can you show the wiring compartment?

I’ll do that, thanks. I’m not sure what the original capacitor was. I suspect that it got swapped out for something different at some point, and we’ve just been carrying over the replacement. I’m attaching some extra photos.

 

[Texas Splash]

I can‘t quite tell how to determine the age from the serial number.

@JamesW, would you say Sep 2004 or 2014? I've not seen this make/model before. Either way, may be nearing its time to replace?

 

[JamesW]

I think that the motor is from 2015.

I don't know what exact capacitor came with the pump, but it was probably a run capacitor and not a start capacitor.

 

[JamesW]

May 2015.

https://imperialpoolsb2b.com/Documents/US-Motors-Warranty.pdf

 

[JamesW]

Contact the manufacturer to inquire about the correct capacitor.

US-Motors

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[LMK17]

Thank you both very much for your replies! Much appreciated!!

 

[LMK17]

I don't know what exact capacitor came with the pump, but it was probably a run capacitor and not a start capacitor.

We checked, and the capacitor that was in there (270VAC, 50MFD) is the correct one.

Just out of curiosity, what made you say it was probably a run capacitor? You were correct, of course. I’m trying to train my eye: What can I look for in the future to get a better idea of what type of capacitor is used in a particular pump?

 

[JamesW]

A start capacitor needs an automatic switch to remove it from the circuit when the pump gets up to speed.

I did not see a centrifugal or other switch.

 

[JamesW]

We checked, and the capacitor that was in there (270VAC, 50MFD) is the correct one.

Confirmed by who?

 

[LMK17]

A start capacitor needs an automatic switch to remove it from the circuit when the pump gets up to speed.

I did not see a centrifugal or other switch.

Thanks!

Confirmed by who?

Confirmed by both US Motors and Inyo Pools.