The Efficient Home Forum

Hi, thanks for your reply. The boiler switch is within line of site of the touch screen controller, so would like to think that they can talk. I’ll see if i can run the coms check between the 2. Is there any other way to see if it is the fail safe firing the boiler?

Hi, i am having issues with the boiler relay. It is turning on and off randomly. This is when all heating zones on the evohome are set to off. So there is no demand from the zone valves. Any ideas what could be doing this?