I went into a cupboard, to get some more loo rolls and noticed that the Drayton Digistat was flashing red! Oh my, what does it mean? Tried looking it up on You Tube, but no real help. i.e. " have you changed the batteries?" Well the thing is hard wired in.
Emailed the chap who services the heating.
Then, DH says, ( he can be of use some time 🤗), the room thermostat is a Drayton!!! So we had a little look, and lo and behold, there is a tiny symbol, like a battery. Out come the screwdrivers to open the box. We have changed the batteries, the symbol has gone and I think we have lift off. We shall see.
Why don't these flashing lights beep at you and say " battery needed".
Panic over, for now, and hope we stay warm. But we could do without these in the middle of the afternoon, just when I am having a cup of tea ☕️.