The Efficient Home Forum

Surely the water still flows if all radiators are shutdown, it just flows around the pipes. Or are you saying the flow rate is too low.

I've always wondered if a system that is x-plan needs an automatic bypass? As there is always a path through the pipework, even if all TRVs have closed, what benefit does a ABV give?

If you press the left button on the HR91 it will set the requested temperature to a low temperature (maybe 5 degrees but I can't remember), effectively turning it off. (LED should flash amber). Press it again and it will set temperature to max, with LED flashing green. I think you need to cancel the ...

I have that button, but it does appear in a different location on that screen as I don't have Advanced Load Scaling but do have Stored Hot Water.

Are you using OpenTherm? If you are I don't think those options are available to you.

Do you have a DHW kit? If so, check the batteries in the temperature sensor transmitter (CS92). When they get low they are known to cause all manner of havoc.

For your issue 1), I would check what the demands of each zone are, and see what, if anything, is calling for heat. (Long press on settings, and then system summary.)

As far as I remember, the binding sequence asks you if you want to bind any more devices after you have bound the first one.

Single room is correct.

Have you tried rebinding the temperature sensor. No need to delete the zone, just rebind the sensor.

This should work - I have 3 radiators with a central temperature sensor. Presume the zone is set as single room?