Pilot light is on, timer and termostat okay but does not start up?

Remember that if the repair requires the replacement of any gas carrying part then you MUST be CORGI Reg. Failure to comply is illegal. If a problem / damage arises from a dodgy repair your home insurance will be void.
Thanks
Wayne

Wayne
July 2005

Check for voltage at the gas valve. It may be a 24v valve or 240v. Another way is to isolate the boilers power supply, remove both wires on the gas valve solenoid and check for continuity. None = Faulty. Conti + Ok. What`s the boiler type / make
Thanks
Wayne
wlgas@blueyonder.co.uk CORGI REG Serving the north west for all your heating and plumbing needs.

Wayne
July 2005

First check there is no hidden reset button anywhere and if not then you need to prove that the boiler is getting a good 240v when the controls are switched on

steve
July 2005