Hi Chris,
To be clear the heating occasionally keeps running without turning off!
The house just gets hotter and hotter!
I hope that clears any confusion!
On the Honeywell, I have seen a clip on the right that can slide out to the right. It looks like there should be a watch battery of...
Hi All,
I have a Vaillant boiler. Its managed/controlled by a Honeywell CM67 unit.
I have a set program for the heating to come on/off, and the tempratures that it should regulate at the programmed times.
Over the last 2 weeks occassionally the boiler keeps running and the heating doesn't...