I moved into my present house a few months ago. I have a Baxi WM 38/3RS gas boiler which has an electronic timer connected but not a room thermostat. When I moved in there weren't any thermostats at all in the house.
I have fitted 2 TRVs in the bathroom and living room but would like to have a room thermostat fitted for controlling the operation of the boiler. Unfortunately, there isn't any documentation to go with the boiler. I had an electrician round the other day for a re-wiring quotation but he could not work out how to connect a room thermostat to the boiler. I have checked the Baxi website and Googled but cannot find any wiring details. Haven't contacted Baxi yet. I noticed from Googling that the boiler may date back as far as 1988.
Is it likely that a heating engineer would be familiar enough with these boilers to fathom how to connect a room thermo or am I probably stuffed? Otherwise, does anyone have a wiring diagram for this boiler?
AT .