Bit of a dum question on RCDs coming up....
My Mrs just called cos power had gone to all sockets. Apparently the RCD covering 3 socket circuits had tripped. At the time she was doing laundry i. e. washing machine and dryer going flat out, but these are not old appliances so this is disappointing.
The thing is, she had tried to reset the RCD before phoning me and said it was "floppy". From what she said I understood that there was no resistance when trying to reset the RCD and the toggle switch simply dropped back to the off position.
When she called me, I talked her through the re-setting to be sure she had it right, but this time the RCD reset OK.
Does this suggest that the RCD is on the way out, or is this what usually happens if the fault still exists when you attempt to reset the device? If it was due to a lingering fault, how can I trace this? Is it likely to be a transient "damp in stuff" issue due to laundry activities?