How to mend ... Air System Worm

GLOW WORM ULTRACOM 30 HXI (F5 - OVERHEAT RE-SET?)?

THIS IS A 2008 MODEL. I have had air in the system & the boiler now displays F5 & will not start. I believe ... [Read more]

Glow-worm ultimate?

The pump is a grundfoss 15/50 it is makeing a lot of noise. also the boiler starts but there sounds like there... [Read more]

Glow Worm 35 ci problem?

Our boiler seems to work when if feels inclined! This is not always when we feel like being warm! I have tried... [Read more]

Glow-worm 18sxi problems - HELP!?

Hi We bled the rads on Friday evening, lots of air in system. Later that evening boiler refused to work, 0... [Read more]

Glow worm Space saver 45-60B Starts up OK then stops?

Pilot starts up ok and ignites boiler OK works for 30-40 seconds only then switches off with no pilot. Also re... [Read more]

How can i fix my Glow Worm 20 - 30F?

The boiler only starts the fan and fires up if i blow into the Air Pressure Switch. The Mid Position Valve and... [Read more]

How can I fix my Glow Worm 55F boiler?

Re-Glow Worm 55F Fuel saver boiler. Fault:- boiler fires up and remains lit for 40secs., it then cuts out for... [Read more]

Glow Worm Spacesaver bangs & crashes when starting?

I have a wall hung 65000 BTU balanced flue boiler in our kitchen, it came with the house 25 years ago (when ne... [Read more]

need help fixing problem with some radiators on domestic system?

replaced water cylinder and now havin problem with three rads not heating up. they are close to each other. re... [Read more]

Help! How can I make the hot water flow faster?

We have never had any trouble with our hot water flow until we had a new Glow Worm condensing boiler installed... [Read more]

How can I diagnose my Glow worm Fuelsaver F100 boiler problem?

My ageing, but until now perfectly reliable, Glow worm wall mounted central heating boiler appears to have dev... [Read more]

Boiler creating air?

Need some advice concerning my central heating/water boiler. The system is fired by a Glow-worm Fuelsaver 30-... [Read more]

Glow-worm K.F.B... how to fill??

my brothers central heating sounds like a kettle without water when he turns it on, the pump in the upstairs a... [Read more]

Glow-worm 30HXI F5 fault code - cannot restart boiler?

I've had a plumber out today to fit new rads. Previously have had no probs with boiler. Now, loads of air bubb... [Read more]

Please, please help!!?

Glow-worm Spacesaver 40B Mk11 The burner ignites with a strong blue flame, but after a few minutes, the fla... [Read more]

Burner flames all over the place?

Glow-worm Spacesaver 40B Mk11 The burner ignites with a strong blue flame, but after a few minutes, the fla... [Read more]

Over pressure in Glow Worm Swift Flow 80 Boiler - dangerous??

I have a Glow Worm Swift Flow 80 Boiler. It is over pressurising itself to 4 bar when on for just a few minute... [Read more]

Glow-Worm Fuelsaver 55F. Very noisy boiler?

Glow-Worm Fuelsaver 55F. Very noisy boiler. Although this boiler is of the ancient variety it is however st... [Read more]

Glow-worm 240/246 stopped heating radiators?

We have an ancient Glow-worm back boiler which worked fine until a few days ago.We can now only get one radiat... [Read more]

why won't my Glow-worm economy f work?

Everytime I take a radiator off and replace it the system won't ignite . the pump works but when I try to blee... [Read more]