You need to carry out a methodical check, is the Programmer in an ON Period, Is the Water Circulation pump running?
Is there power to the boiler ? is there continuity through the Boiler Thermostat? is there power to the Gas Control Valve? Is the Neutral intact?
what is the winding resitance through the gas valve solenoid?
GET A SERVICE ENGINEER!!!
Boiler Repairman
June 2009
Automatic Answer
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