Advice on GFCI branch tripping

[Jgold47]

Have a branch circuit with what I believe are 4 outlets on it. It’s a GFCI breaker, but there are 3 separate GFCI plugs (two in one bathroom, one in the other) and then an outdoor outlet.

about 3-4 months ago the breaker would randomly trip (Not one of the plugs). We’d reset it, and it would be fine for a few days till it tripped off again (in the panel).

I replaced the outdoor plug and recaulked the box thinking that might be the issue, despite it not happening when it rains.
I bought a GFCI tester and each works as expected.

I had two thoughts:

1. the GFCI in the panel is nearly 40 years old. Should I start by replacing it?

2. do I really need 3 GFCI’s if the whole branch is on a GFCI breaker? Two are probably original nearly 40 year old ones, the other I installed about 3 years ago.

any other ideas?

thanks!

 

[Little Bill]

I would suggest calling a qualified electrician as we aren't allowed to help those not in the industry.

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[charlie b]

Have a branch circuit with what I believe are 4 outlets on it. It’s a GFCI breaker, but there are 3 separate GFCI plugs (two in one bathroom, one in the other) and then an outdoor outlet.

I would like to add that when the electrician arrives, don't be surprised if they tell you this is a code violation. A circuit that supplies receptacles in two or more bathrooms is not allowed to supply anything other than bathroom receptacles. Reference NEC 210.11(C)(3).