Search results

  1. P

    knowledge sharing - Honeywell 4073A Motorised Valve Problems

    Hey folks Just thought I'd share a bit of knowledge I've just gained as I always find this forum v useful and informative. Hot water and central heating system - hot water was working, tank thermostat switched boiler + pump on when controller was on for HW. So I know the boiler, pump and...
Back
Top