how can I fix glow worm ultimate. I have hot water but no central heating. The pilot light is on but there is no fire up for heating

heather, May 2009

my gloworm ultimate 50ff boiler will not ignite through the normal controls, the fan is not running and the automatic igniter issent clicking in. if i put a direct live feed to the fan it runs and opens the gas valve an i can light it manually, it runs perfectley but i can not control any settings, if i dissconect the live feed 2 the fan the boiler goes out. if i leave the wire on an turn the boiler off at the clock thr poilet lite goes out ?

chris simpson, January 2010

faulty 2/3 port valve may be able to install just a synchron motor approx 15 pounds

steve, August 2009

The boiler itself must be OK if it heats water. The fault is probably a faulty heating/water change-over valve. (fitted near the circulating pump)

John G, May 2009