Hello
Tripped the RCD, interestingly during a storm
There is continuity between the live and ground (but v high resistance)
Can’t see any obvious problem
Is there a common weakness somewhere with these with a view to looking there first?
Many thanks for your advice
Nick
common weakness is pcb.
replaced one (before coming across emw) post-electrical storm last october. so far ok, so seems like was affected by power spike…?