How old is your boiler? It’s possible it has a fault or that the boiler is using the earth as a switched live if it’s been replaced in situ and that is grounding out (ours was like this, had an RF...
Type: Posts; User: stooo
How old is your boiler? It’s possible it has a fault or that the boiler is using the earth as a switched live if it’s been replaced in situ and that is grounding out (ours was like this, had an RF...