Quote Originally Posted by sh4d0w View Post
Fabulous. Thank you my mate.
Just had to turn my boiler off!
Seems to be all working ok and then I walk downstairs and it’s like an oven.... heating is on at nuclear temperatures. Couldn’t touch the rads. Checked the evohome screen and it didn’t look like it was running. Any idea why that might be buddy?
I’m a bit reluctant to carry on if it’s not working properly.
Did you remove the 24v link? Check that when Green lights are off on BDR91s there's no demand at the boiler.

Boiler should only run when there's a Green light on the Boiler Relay BDR91.