Which way to turn slotted screw to adjust water pressure up on a glow worm ?
glow work swiftflow 75/80/100?
glow worm 2boiler fires up for 10 to 20 mins then shuts off whats wrong?
Glow-worm micron 60ff boiler niosy ?
Intermittent boilet fails to fire on heating?
performa 30 he fault fan flue lights on ?
GS 24i junior boiler timer broken?
I have moved into a flat am dissabled carnt get heating on unit flashing F1?
how can i fix my central heating. Glow-worm ultimate?
radiators hot when water turned on?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?
How can I fix my glow worm flexicom 30cx ?
My central heating is not working?
fitting thermostat?
Bt Gas glow worm 330 timer controls not working?