Circuit Breaker

Frank in FL

Well-known member
Jul 3, 2019
189
Florida
Why is the pool pump circuit breaker tripping all the time?
The other circuit breaker(in same breaker box) for the GFI outlet and pool lights never trips.
Got home from work around 12 today and saw water wasn't moving in the pool. Went to box and breaker was tripped. There was No rain or lightning or today.
The pump requires 7amps I believe, and it’s a 20amp breaker.
This is probably the 5th time or so it has done this since June.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
10,746
Northern NJ
You either have a weak circuit breaker that needs replacing or a GFCI fault in the pump motor.

Could be a seal starting to leak some moisture into the motor, could be some corrosion developing. You can check the motor wiring connections and see they are corrosion free.
 

Frank in FL

Well-known member
Jul 3, 2019
189
Florida
Pump is only 3 months old.. Jandy somehow let a 4 year old pump slip through and my PB installed it. Well after issues with that pump, I callled Jandy and have them serial number it was determined I had an old pump.
been nothing but issues I tell ya.
 

Frank in FL

Well-known member
Jul 3, 2019
189
Florida
It’s a double 10amp
Breaker. The lights are single 10amp breaker and my kitchen outlets are 15 amp breaker.
I’ll call the builder tomorrow and let him know what’s going on since it’s still under warranty.
 

Rattus Suffocatus

Silver Supporter
Jun 5, 2019
446
Corona de Tucson, AZ
The 10A breaker isn't likely enough for the initial surge when it starts. If you look at the plate on the motor it should list maximum current on it. A breaker should be rated at 50% more than that. Look and have the warranty guy put the right sized one in. It's about a $12 fix regardless.

The 20A/240V double is likely the right value.
 

jimmythegreek

TFP Expert
Bronze Supporter
In The Industry
Aug 10, 2017
1,352
Morris Cnty NJ
A quality double pole 20amp gfci breaker is 50-100 depending on brand. They do go bad especially when used outdoors. The breaker looks for around 5ma difference in the nuetral to line differential and that's what trips it. Very sensitive equipment but pumps are known to trip breakers. pentair has it's own gfci brand breaker just for pumps and it works well
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
10,746
Northern NJ
The 10A breaker isn't likely enough for the initial surge when it starts. If you look at the plate on the motor it should list maximum current on it. A breaker should be rated at 50% more than that. Look and have the warranty guy put the right sized one in. It's about a $12 fix regardless.

The 20A/240V double is likely the right value.
I doubt he has a 10A breaker for his pump. I think it was a typo.
 
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JamesW

TFP Expert
Mar 2, 2011
16,589
Since you have a VS pump and a SWG, how are you controlling the SWG to make sure that it's not getting power when the pump is off?

The builder should have used automation with a built in subpanel.

How old is the breaker and subpanel?

Does the breaker trip when you press the "Test" button?

VS pumps generate certain electrical fluctuations that can trip a GFCI.

You might have to switch to the Pentair breaker because it is designed to be resistant to the types of fluctuations that a vs pump can generate.

Have the builder check the wiring to make sure that it's done properly.
 

Frank in FL

Well-known member
Jul 3, 2019
189
Florida
The SWG turns on after approximately two minutes From when when the pump is initially turn on.

The entire pool package was completed in June, 6 months ago.

The breaker does trip when I hit the test button.

Since you have a VS pump and a SWG, how are you controlling the SWG to make sure that it's not getting power when the pump is off?

The builder should have used automation with a built in subpanel.

How old is the breaker and subpanel?

Does the breaker trip when you press the "Test" button?
 

JamesW

TFP Expert
Mar 2, 2011
16,589
How is the SWG being controlled?

How does it turn off and on related to the pump being on or off?

Does it use an auxiliary load relay in the pump?
 

JamesW

TFP Expert
Mar 2, 2011
16,589
I suspect that it could be harmonics from the variable frequency drive. Have the builder check everything since it's under warranty. You might want to switch to the Pentair breaker.