Still sloooowly working on getting my new equipment in. The old single speed was on a dedicated 20A NON GFCI breaker. The Hayward pump manual says to use a 15A branch circuit so the new one was connected to a 15A GFCI breaker. It would got through the little boot process but as soon as the motor clicks the breaker trips.
So, back to the old breaker and it works fine. Yes, I also had to pull out the 14 Awg wire I had to put in 12
However, looking for ideas on which direction. If the pump manual is accurate then I shouldn't need a 20 amp breaker, but if it's true that the manual is stating a bare minimum and it's common then I may be good to go after just replacing the old breaker with a 20A GFCI. Or, even with a new pump, sitting on a dry pad, never wet, and just wired in broad daylight is there some GFCI issue and it having been a 15A breaker has nothing to do with it? 240v by the way.
The sub panel is in a Hayward PL-Plus but currently the controller is not yet being used and it's still just a panel. The breaker is off, but there is a side GFCI outlet on it and it doesn't trip at all when it has been on.
Searching the site it "seems" most with issues with tripping came about later but almost all were using a 20A circuit in the first place, so my fingers are crossed that all I need to do is return this 15A GFCI and get a 20A GFCI, which is a few bucks cheaper even