I recently replaced a thermistor as it was shorted out and replaced the mother board , since then the boiler often goes into Lockout when switching on the heating and or hot water.
What does it mean when it goes into Lockout please? And how do I resolve this?
Thanks and a Happy New Year to all on this forum.
What does it mean when it goes into Lockout please? And how do I resolve this?
Thanks and a Happy New Year to all on this forum.