那个15A 的 GFCI receptacle 比较老式，太敏感了，不该管的事触发了保护机制。
以后有闲空买个新的 15A GFCI receptacle 换回去试试。见这个 forum
https://www.finehomebuilding.com/forum/tripping-gfci
Quote:
Some cheap GFCIs are susceptible to high frequency noise, such as a slight arc when a switch is opened on an inductive load. The better ones will state that they are resistant to nuisance trips. A nuisance trip is not a ground fault, it is a false trip due to electrical noise.A Hubbel brand is probably the best.
Motors do create significant start/stop transients, and AC/DC motors can create a lot of run hash as well. These transients can "fool" GFCIs. But both the motors and the GFCIs have been modified over the past 30 years to where such problems are far less likely than originally.If a motor is tripping a GFCI my first suspicion would be the GFCI.
Our hairdryer used to trip the GFCI also. It started out with an occasional trip, but eventually it would trip every time the hairdryer was plugged in or unplugged... even with the motor off. I replaced the GFCI and it's been trouble free ever since. of course, this may or may not apply to your GFCI.
