my remote DF central heatingtimer(controller) keeps switching back to off after manually setting the tempreture,there are no auto settings programmed into it.
Its in direct line of site with the reciever in the bathroom which is at the top of the stairs and the timer is in the hallway.
Sometimes it stay on for a few hours but will still switch off and it shouldn't do as it manually set.
Anyone have any ideas why it keeps switching off on its own accord?
Thanks