I would suspect that, but both these items are switched off. We have kept a
log of things that trip the RCD and it is a long list - there is no regular
pattern.
"John Rumm" wrote in message
...
Hzatph wrote:

The 16 circuits have:

4 ring mains
2 power spurs (cooker, immersion heater)

^^^^^^^^^^^^^^^^
Prone to high leakage!

Try turning off / pulling the fuse for this and see if it helps.

If that does not find it then you are going to need to start testing the
wiring for each circuit with a megger.

I would suspect that, but both these items are switched off. We have kept a
log of things that trip the RCD and it is a long list - there is no regular
pattern.