Pool Breaker Tripping

[cannonball35]

Hello,
I been having an issue with my breaker to my pool pump tripping. It's an odd scenario that two electricians are unable to provide a resolution. My pool pump is on one breaker and I can run the pump for 24/7 with no issues. My heat pump is on another breaker and when I put my heat pump on the pool pump breaker trips. I had the pool pump breaker replaced all the connections checked and the issue is still happening. Seems like everyone doesn't seem to find the relation that only when the pool heat pump is on and running the pool pump will trip after an hour an half of running. Any advice that can help troubleshoot?

The pool pump is on the 20amp pole breaker and the heat pump is on the 60amp pole breaker. The 20amp pool breaker does get warm when the heat pump is on.

 

[cannonball35]

Thank-you everyone for the feedback. I'm awaiting next steps from the pool company. In the meantime I order a thermo gun to test the breaker temperature. It's running now with out the heat pump and it's not warm. Once the heater is turned on it gets hot. Maybe that will be able to provide some additional information to identify the root cause.

 

[westward10]

What you need is a clamp meter to measure the current from the breaker with the different parts running.

 

[cannonball35]

Just ordered one from Amazon. I'll post the results once it comes. thank-you for all the feedback,

 

[cannonball35]

The pool company was just out. They switched the heat pump breaker from 60A gfci to a 50A. They are thinking the gfci is causing the breaker to trip. I have everything running now, hopefully that was the issue.

 

[westward10]

Is it still a gfci. I dont understand why the other breaker was tripping.

 

[cannonball35]

The replacement breaker wasn't a gfci it's just a double pole 50A breaker. I'm not sure the pool company said they started to swap out the gfci breaker for the heat pump as they were seeing them start to trip. I'm confused also as how the other breaker was tripping. The only thing I can see is that the ground wire for the pump goes to the heat pump which then goes back to the main panel. Maybe there is a relation there. It's been running for about 4 hours now.

 

[westward10]

Can't see how the ground wire has influenced the tripping nor can I see how changing the heater breaker stopped the pump breaker tripping. Whether they should have replaced the gfci with a normal breaker @Megawatt is more likely to know as he is based in the States.

 

[Rockingit]

Sounds to me like there's some linkage between the two breakers going on there.

 

[Megawatt]

The 20A breaker trips roughly about an hour an half after the heat pump has been turned on and running

Cannon if your breaker is getting warm, it is pulling more amperage than it is designed for. If it runs for an hour and one half it’s not a fault tripping issue. No Matter what your electrician tells you are pulling too much amperage. Try a 30 amp breaker just to proof a point. Feel the wire to see if it’s getting warm also. You need # 10 wire.

 

[cannonball35]

Update: I ran everything overnight and no issue. About 11:30am the pool pump breaker tripped. At that time the pool vacuum was running with the pool pump on the same 20A breaker. I'm waiting to hear the next steps from the pool company. I would like them to put the pool vacuum on a separate breaker. Hopefully we are getting closer to resolve this. Appreciate the help.