Hi
It runs for about half an hour then trips the whole house. Flick the trip switch it carries on for a bit, then goes again.
The house is about 12 years old if that helps.
????
Steve
Almost certainly the heater going down to earth from that explanation. You’ll need a test meter to check for sure.
Be advised that these are an exceedingly awkward machine to work on, if you are not sure how to proceed, please get pro help. You can use the link below for a UKW engineer in you area.