The RCD tripped out on Sat night for the ground floor ring main....usual chaos - freezer defrosted etc etc....currently running an extension lead to upstairs as there's nothing running on that ring main.
Strange thing was none of the MCBs had tripped. I tried to reset the RCD and it would only switch on it I switched off the MCB for the ground floor ring main. Since it has allowed me to reset the ring main several times and stays on for 20-30 mins before tripping out.
Thinking back this has happended 6 times over the past 4 years but each time the RCD re-set so I didn't think there was a problem.
I have tried unplugging everything on the ring main and switching off all the sockets. I also swapped out the MCBs but no change.
Its a 4 year old MK consumer unit with 30ma RCD.
It seems there is a problem with the ground floor circuit but as there's nothing new on the circuit, there's no obvious damp, no water leaking etc... why would it suddenly start tripping?....
What should I do to try to isolate the cause of the tripping?
All help gratefully Appreciates, Many thanks.
Strange thing was none of the MCBs had tripped. I tried to reset the RCD and it would only switch on it I switched off the MCB for the ground floor ring main. Since it has allowed me to reset the ring main several times and stays on for 20-30 mins before tripping out.
Thinking back this has happended 6 times over the past 4 years but each time the RCD re-set so I didn't think there was a problem.
I have tried unplugging everything on the ring main and switching off all the sockets. I also swapped out the MCBs but no change.
Its a 4 year old MK consumer unit with 30ma RCD.
It seems there is a problem with the ground floor circuit but as there's nothing new on the circuit, there's no obvious damp, no water leaking etc... why would it suddenly start tripping?....
What should I do to try to isolate the cause of the tripping?
All help gratefully Appreciates, Many thanks.