Help: RCD won’t switch back on
Discussion
The downstairs / upstairs ring just tripped and it won’t switch back on again. The weird thing is that all the individual fuses stay “on” (and even if I switch them off) the main one won’t stay on.
It doesn’t have any “feel” to it so I wonder if it is broken ? Any help appreciated as the freezers are happily defrosting.
Edit: even if I switch off the whole power (red switch) the switch doesn’t stay up.
It doesn’t have any “feel” to it so I wonder if it is broken ? Any help appreciated as the freezers are happily defrosting.
Edit: even if I switch off the whole power (red switch) the switch doesn’t stay up.
Turn off every one of the MCB switches and then try to turn the RCD back on.
If the RCD does turn back on ok then turn the MCB switches on on at a time.
If one causes the RCD to trip then you’ll know which circuit has the problem on it.
RCD units can fail and need replacing. They are often said to have a 10 year working life.
If the RCD does turn back on ok then turn the MCB switches on on at a time.
If one causes the RCD to trip then you’ll know which circuit has the problem on it.
RCD units can fail and need replacing. They are often said to have a 10 year working life.
I think the RCD should stay up with the main switch in the off position, dont think the Crabtree ones (or any for that matter) need power to stay on. Must be knackered, although a fault on one of the circuits could have broke it, might just need a bit of a tap to free any seized parts inside if its not been operated for years. Bet the OP gets talked into a new consumer unit though.
mickmcpaddy said:
I think the RCD should stay up with the main switch in the off position, dont think the Crabtree ones (or any for that matter) need power to stay on. Must be knackered, although a fault on one of the circuits could have broke it, might just need a bit of a tap to free any seized parts inside if its not been operated for years. Bet the OP gets talked into a new consumer unit though.
I haven't tripped it again, but may do to check to see if it is broken. Not too sure about 'talked into' as all parts & labour are covered by the BG agreement.You've got some weird MCB rating on there! eg, cooker hood on it's own circuit rated at 16A, boiler on a 16A breaker etc. Does the RDC have a test button? My comment about MCB's being single pole isn't valid as I'd missed the fact you has switched the main RED switch off. Seems weird the RCCB is "split load" but only has one switch, the whole point of "split load" is the whole lot doesn't go off in the event of a fault, normally by way of two separate RCD's! (one reason all RCBO's is the best setup)
boxst said:
mickmcpaddy said:
I think the RCD should stay up with the main switch in the off position, dont think the Crabtree ones (or any for that matter) need power to stay on. Must be knackered, although a fault on one of the circuits could have broke it, might just need a bit of a tap to free any seized parts inside if its not been operated for years. Bet the OP gets talked into a new consumer unit though.
I haven't tripped it again, but may do to check to see if it is broken. Not too sure about 'talked into' as all parts & labour are covered by the BG agreement.Dave_ST220 said:
You've got some weird MCB rating on there! eg, cooker hood on it's own circuit rated at 16A, boiler on a 16A breaker etc. Does the RDC have a test button? My comment about MCB's being single pole isn't valid as I'd missed the fact you has switched the main RED switch off. Seems weird the RCCB is "split load" but only has one switch, the whole point of "split load" is the whole lot doesn't go off in the event of a fault, normally by way of two separate RCD's! (one reason all RCBO's is the best setup)
That's a standard 16th edition board fitted sometime prior to 2008 when it changed to RCDing virtually every circuit. Dont see the problem with dedicated circuits, the boiler one is probably the old immersion feed. In fact its a nicely done board with plenty of circuits to minimise inconvenience if there is a fault, and its also nice to see the MCBs in amp order.Alucidnation said:
Not get spares for a Crabtree Starbreaker CU??
Those things are more common than dog st.
The design of the newer ones has changed though and I doubt BG will trawl ebay looking for the correct one. If its not readily available at their stockist they will give up.Those things are more common than dog st.
PS why is every post I see of yours taking the piss in some way or another, you remind me of a spark on the screwfix forum called Sinewave, always new best, always supposedly had the best van/tools/clothes, got the best work and best paid etc. etc. etc. probably all bks.
miniman said:
Did you turn it off before trying to turn back on again?
RCDs have 3 positions
ON
TRIPPED
OFF
When it trips, and ends up in the “middle” position, you have to push it down to OFF, then back up to ON. Just pushing it back up to ON won’t work.
Not all of them, I think the Crabtree ones just go straight to off, the MEM ones sit in the middle and the MK used to or still do maybe.RCDs have 3 positions
ON
TRIPPED
OFF
When it trips, and ends up in the “middle” position, you have to push it down to OFF, then back up to ON. Just pushing it back up to ON won’t work.
mickmcpaddy said:
Alucidnation said:
Not get spares for a Crabtree Starbreaker CU??
Those things are more common than dog st.
The design of the newer ones has changed though and I doubt BG will trawl ebay looking for the correct one. If its not readily available at their stockist they will give up.Those things are more common than dog st.
PS why is every post I see of yours taking the piss in some way or another, you remind me of a spark on the screwfix forum called Sinewave, always new best, always supposedly had the best van/tools/clothes, got the best work and best paid etc. etc. etc. probably all bks.
Also, not all of my posts take the piss, just most of them.
And yes, i do get a lot of good work and get paid very well, but then, I carefully vet my clients
Edited by Alucidnation on Tuesday 24th October 22:02
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