Hi.
I woke this morning to find a cold house.
Checked the Fuse in switched Spur to find it blown (3A).
Changed the fuse, turned power on, RCD on house tripped.
Went to programmer turned off heating and water, tried again, RCD tripped.
Turned off rocker switch on boiler, tried again, No Trip.
Turn rocker switch on, RCD tripped.
Disconnected Live and Neutral on pump, tried again RCD tripped.
Disconnected Earth on pump, tried again, No Trip, No lights on boiler.
Replaced pump wires, No trip and no lights on boiler. Spur fuse ok still.
PCB replacement time?
I woke this morning to find a cold house.
Checked the Fuse in switched Spur to find it blown (3A).
Changed the fuse, turned power on, RCD on house tripped.
Went to programmer turned off heating and water, tried again, RCD tripped.
Turned off rocker switch on boiler, tried again, No Trip.
Turn rocker switch on, RCD tripped.
Disconnected Live and Neutral on pump, tried again RCD tripped.
Disconnected Earth on pump, tried again, No Trip, No lights on boiler.
Replaced pump wires, No trip and no lights on boiler. Spur fuse ok still.
PCB replacement time?
