I've recently had a problem with water pressure dropping on this boiler and water flow from the hot tap seemed lower than usual. However this afternoon when I went to turn the heating on again the RCCB in the house circuit breaker had tripped out.
Every time I switch the boiler on at the wall socket the circuit trips. Even if I set the boiler switches to Standby and central heating to Off it still trips out.
I have tried fitting a spare modulation control board but same problem remains.
I have also disconnected both the fan and pump wiring connectors but it has made no difference.
What else could be causing this fault?
The gas valve or a micro switch?
Thanks for any help.
Every time I switch the boiler on at the wall socket the circuit trips. Even if I set the boiler switches to Standby and central heating to Off it still trips out.
I have tried fitting a spare modulation control board but same problem remains.
I have also disconnected both the fan and pump wiring connectors but it has made no difference.
What else could be causing this fault?
The gas valve or a micro switch?
Thanks for any help.
