Not real fast like 60 hz. Probably about as fast as a poltergeist could flip the switch. No fan or heater, separate switch.How fast is it flickering? Also is there a fan or heater as part of the light in the bath ?
Probably a loose connection on a terminal early in the circuitNot real fast like 60 hz. Probably about as fast as a poltergeist could flip the switch. No fan or heater, separate switch.
Those outlets with the "plug in" wires can be a problem, nothing like full screw head contact.I have seen this issue and found loose wires on outlets. Screws were loose so they were were touching the wires but caused flickering at times. Gradually got to the point where the breaker was kicking out. Just happened to find it in the first outlet we checked. Replaced the outlet, really snugged the wires tight and also replaced the breaker. Cheap insurance.