1964 Inglis portable dishwasher tripping a GFCI outlet.

[arbilab]

Solenoid valves can put a huge inductive spike on the line, depending where in the 60hz wave they are disconnected. I run my incandescents on dimmers which are sensitive to spikes. The icemaker valve was notorious for making the lights flash.

 

[jetcone]

My electrician

this is 15 years ago BTW told me GFI's can go bad and trip at anything. The first set he installed in my kitchen did this with my KA mixer, and reversing Vita Mixer. He replaced them at 5 years old and these have never tripped again. That said I would never put a 1957 Charcoal Frigidaire washer on one !!

 

 

[akronman]

and fridges

Never put a fridge on a GFCI, the NEC allows that exception even if it's in a basement.