what causes the sabre he 25 to come on, on its own?
GS 24i junior boiler timer broken?
Which way to turn slotted screw to adjust water pressure up on a glow worm ?
How can I fix my glow worm flexicom 30cx ?
glow worm 2boiler fires up for 10 to 20 mins then shuts off whats wrong?
Glow Worn Micron 50FF?
My central heating is not working?
how can i fix my central heating. Glow-worm ultimate?
Bt Gas glow worm 330 timer controls not working?
Glow worm flexicom 30cx auto air vent - how do I replace?
performa 30 he fault fan flue lights on ?
fitting thermostat?