Search results

hi all just replaced a honeywell V4073A 3 port motorised valve, and cant seem to get it to fire the boiler when the room stat calls. The mechanical cogs drive the arm forward but fail to make the switch cut in to fire the boiler. If i use a screwdriver to touch the switch the boiler fires...

Hi All, I'm new to this forum, wondered if anyone can help with suggestions. I have an ideal Classic FF240 boiler, Honeywell C21 programmer. Just yesterday the circuit breaker linked to this tripped, and have now realised that the boiler doesnt fire. i'm pretty good with electrics, have worked...