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We have 57 questions about mending 'glow combi heating'

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Mend Heating, Home Heating Systems

Glow worm (C30i) F5 flashing light?

Glow worm C30i combi gas boiler showing a red flashing light F5. No hot water & no heating. Tried re-setting,... [Read more]
Mend Heating, Home Heating Systems

Saunier Duval Boiler - SD30e cutting out?

Hi, I have an SD30e combi boiler (exactly the same as a Glow-worm compact) and recently a diaphragm had to be ... [Read more]
Mend Heating, Home Heating Systems

How do I stop my Glow-worm Combi-Boiler overflow from emptying the system?

There is something wrong with the overflow mechanism on my boiler. The central heating water pressure shows 0 ... [Read more]
Mend Heating, Home Heating Systems

How to fix a Glow Worm 35ci combi boiler?

The heating is working but the hot water suppy only gets luke warm. The water gets slightly hotter if I reduce... [Read more]
Mend Heating, Home Heating Systems

Heat Upstairs But not Downstairs?

I have 6 radiators in my house, 4 upstairs and 2 downstairs. My upstairs radiators are fine but I have a probl... [Read more]
Mend Heating, Home Heating Systems

Glow-worm combi boiler 100e information urgently needed?

where is the diverter valve on a Glow-worm 100e combi boiler and what do i need to do to change the diaphragm ... [Read more]
Mend Heating, Home Heating Systems

Pressure rising each time boiler used?

Have Glow-worm Combi 30ci plus. Had the (cracked) expansion vessel replaced after leaking. Boiler pressure now... [Read more]
Mend Heating, Home Heating Systems

We get hot water when we turn on the heating but not otherwise?

If we turn on the external heating thermostat, the central heating system works (boiler fires and radiators co... [Read more]
Mend Heating, Home Heating Systems

Emergency shutoff won't reset on Glow-worm Betacom 30?

The emergency shutoff light on my Glowworm Betacom 30 combi boiler has come on and will not allow me to reset ... [Read more]
Mend Heating, Home Heating Systems

Glow worm compact 100e combi - red light on when cold?

When our Glow Worm Compact 100e combi boiler is cold (i.e. first thing in the morning), the red warning lamp l... [Read more]
Mend Heating, Home Heating Systems

glow worm combi compact electronic?

heating works fine but hot water does not get really hot particularly upstairs even when i regulate the flow ... [Read more]
Mend Heating, Home Heating Systems

How can i fix my glow worm compact electronic combi boiler?

I have a glow worm compact electronic combi boiler which, when I turn it on ignites the burner and heats the h... [Read more]
Mend Heating, Home Heating Systems

No hot water?

I have a Glow-worm 30ci combi boiler about 2 years old & i have only very luke warm water at all taps & my pow... [Read more]
Mend Heating, Home Heating Systems

loseing pressure in glow worm 30cl combi?

after turning off heating the boiler losess all pressurecan you tell how to fix it and how much it will cost
Mend Heating, Home Heating Systems

hot water coming out cold?

Glow-worm Swiftflow 75/80 Combi Boiler - can you please help. the hot water runs for a bit and then goes cold... [Read more]
Mend Heating, Home Heating Systems

how can i fix combi boiler Glow-worm compact 100p?

boiler is igniting but no hot water and the heating is infrequent only just fitted new pcb
Mend Heating, Home Heating Systems

how can i fix my combi boiler?

my glow worm space saver mk ll wont fire up .the pilot light is on but when you switch the heating on it wont ... [Read more]
Mend Heating, Home Heating Systems

24ci Glow worm combi boiler?

can't get hot water without central heating being on
Mend Heating, Home Heating Systems

combi boiler, no hot water? but have heating?

I have a G.Worm 100e compact (unfortunately) & although I have heating, whenever we draw water from the hot ta... [Read more]
Mend Heating, Home Heating Systems

how to refill central heating system?

I need to change a valve on a downstairs radiator, I have a Glow-worm Swiftflow Combi boiler. I have been tol... [Read more]
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