How can we get our Potterton firing up for hot water?

Are you sure the Tme clock and Cylinder Stat is calling for heat, if fitted is the Motorised Valve opening?
if so is there 230vac at the L/N terminal at the boiler, and at the Gas Valve Solenoid?
its just a matter of illimination

www.gassaferegister.co.uk will assist you to find a Service Engineer in your Area

www.elanar.co.uk
May 2009