vertex skimmer problem

[Wildman]

I have a vertex IN100 skimmer that will randomly kick a GFCI breaker. They replaced the pump and a few weeks later the new pump is doing the same thing. I tested for stray voltage and checked the.magnet for.debris several times. Any ideas.

 

[Clearwater]

GFCI maybe bad?

 

[Reefing Madness]

GFCI maybe bad?

Very much agreed.