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?
fitting thermostat?
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?
How to fix glow worm 18 hxi ?
GS 24i junior boiler timer broken?
radiators hot when water turned on?
glow worm 30c boiler,no hot water?
performa 30 he fault fan flue lights on ?
glow work swiftflow 75/80/100?
My central heating is not working?