Replaced pool pump tripping breaker

ajw22

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Jul 21, 2013
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Welcome to TFP.

Is the pump CB GFCI?

Is the CB trip a GFCI trip or overamp trip?

You have a clamp on amp meter?

Is the pump 120V or 240V?

Post pics of the pump wiring and CB.
 

Mrit

Member
Aug 18, 2021
6
Nj
Hi thanks for replying. The pump motor replaced the same model pool pump which is a spx1620z1m. It is 230v. The circuit breaker is in the house with a timer Right next to the circuit breaker box.
 

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ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
38,860
Northern NJ
Pool Size
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Surface
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Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Haha. It is number 32. The one that is switched off to the right

That is a 15 amp single pole breaker. For the 240V pump you should have a 20 amp 2 pole breaker. Something is not right.

Show me a pic of the motor data plate.
 

ajw22

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TFP Guide
Jul 21, 2013
38,860
Northern NJ
Pool Size
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Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Breakers should not be loaded at more then 80% of rated amps. So max load for a 15 amp breaker is 12 amps. Max amps on that motor plate it says is 11.2.

That breaker and maybe the wiring is wrong for a 230V circuit. I suggest you get a qualified electrician to bring that circuit up to code with a 2 pole GFCI 230V CB.
 

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ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
38,860
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Measure the amps with a clamp on amp meter.

The breaker is old and they get more sensitive to trips with age.
 

phonedave

Well-known member
May 30, 2012
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Montville NJ
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Vinyl
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As was said, something is not right. Just because the old pump was working does not mean it was right either.

#32 is a 120V breaker. A 240V breaker takes two slots and has attached handles, like the 30 amp one in 26 & 28. You CAN wire a 240V circuit into two separate 120V breakers (which is what I suspect was done in your case) but it is not code, and is dangerous. One side can trip while the other remains hot. Two connected breakers ensure that when one leg trips, the entire circuit trips out.

So, be careful when doing your testing / investigation, things could still be hot.

What is with that ball of vinyl tape on the motor connections?

With the breaker on and the timer off, you should have 240V between terminals 1 and 3 on your timer.

The way I would start is by taking the cover off of your main panel and looking to see exactly what breakers / buss bars that circuit is connected to. That way I can make sure I deenergize it before working on it. However, if you are not familiar or comfortable working in your load center, please do not take the cover off.
 
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