I have a friend with an Alpha CB28X Combi boiler, during the summer months she turns the switch on the mechanical rotary timer in to the off position - therefore, you would assume that the CH is totally off, however, at random intervals (not dependant on the time of day) the central heating will turn on, heat up for a few minutes, then turn off again. This has been noticed in the morning and the evening.
Could this be a faulty timer? Or maybe a faulty frost stat?
Several people have pondered, any ideas please?
Thanks,
Simon.
Could this be a faulty timer? Or maybe a faulty frost stat?
Several people have pondered, any ideas please?
Thanks,
Simon.