Hi,
Last night at about 3am we became aware of the central heating was making a noise and when we checked it out, although the central heating and water was switched off the boiler had started up?
Its a standard Potterton boiler (50E) about 13years old.
I turned the hallway thermostat up and down and double checked that the water and heat were definitely off, which they were and a minute later the boiler stopped. This morning and evening it started and stopped as normal.
It was a cold night - I am not sure if that is relevant?
Any clues?
Thanks
Billy