- Over the last 3 weeks, GFCI breaker has tripped 3 times (yesterday was during a dry/calm day while pump running at only 1400 rpm - a couple days after I siliconed around the junction box thinking maybe moisture was getting in box during rain...to rule that out).
- 4 weeks ago installed a new Pentair variable speed pool pump #342001 (that auto senses voltage to run on 120 or 240).
- Running on a new GFCI 120v/20amp breaker (pump has max 13.3A on 120 so not a max amperage thing).
- Also on a new dedicated 70' 12/3 copper circuit (only using the 2 conductors now, but wanted to have option in future to easily go to 240v. I also ran electrical calculator for 70' run and 12/3 copper is in spec).
- Also on a new well protected junction box with no signs of moisture.
- Good new liquid tight conduit connections from box to pump.
Looking for logical next step...
Should I try a different brand breaker?
Any idea if less likely if switching to a 240 circuit/GFCI breaker make it less likely to happen? (I assume breaker have same sensitivity and was hoping to avoid that with the added cost of 240 GFCI breaker).
Any other ideas to troubleshoot/isolate?