Hi. I just had a neighbour in to tell me that the batteries needed changing in thermostat. Have done this. Heating working ok now. I have just noticed that there is a small circle with a little black square in the centre of the thermostat. It may have been there before, never noticed. Is this normal, can anyone tell me please. Thank you
Thanks buenchchico. The only thing on the thermostat similar was the flashing black strip when the batteries needed replacing. I am pretty useless with regards to things like this. I will take your advice and text the firm. Thanks a lot x
For buenchico. I have had a reply to my email. It was very quick. But seemed very complex. As I got info from builder and pictures from etch, I think I have got my answer. I just want to thank you though