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Microwave GFCI breaker on a different circuit

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familyguy

New User
Location
Maryland
Occupation
Engineer
Bought a new microwave. Connecting to a dedicated circuit or other circuit. And it is tripping the GFCI breaker that is on different circuit. Meaning microwave is still running (it is not tripping it's own breaker) but tripping the GFCI breaker

We have only one GFCI breaker that is connected to all bathroom and kitchen outlet.
 
Dennis Alwon

Dennis Alwon

Moderator
Staff member
Location
Chapel Hill, NC
Occupation
Retired Electrical Contractor
These happenings are not usually explainable. Is the circuit that the gfci is on part of a multiwire branch circuit, meaning a shared neutral is involved?
 
tom baker

tom baker

First Chief Moderator & NEC Expert
Staff member
Location
Bremerton, Washington
Occupation
Master Electrician
I have seen circuit breaker GFCIs trip with no load. GFGIs, 50 years their introduction they are very reliable.see if you can borrow a different microwave and try that?
 
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