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We have 161 questions about mending 'glow worm combi'

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Mend Heating, Home Heating Systems

how can i fix my Glow-worm combi boiler 30ci?

my boiler keeps shutting down and shows the error message F1 the water pressure is ok - i turn off the boiler ... [Read more]
Mend Heating, Home Heating Systems

We have a glow worm 25-30 but not filling up with water in tank?

We have a glow worm fuel saver 25-30 but since we put in a new radiator the system does not seem to be filling... [Read more]
Mend Heating, Home Heating Systems

leaking glow worm compact 100e boiler?

My Glow Worm Compact 100e combi boiler is leaking I think it is the heat exchanger. Is it worth repairing a 10... [Read more]
Mend Heating, Home Heating Systems

how can i fix my glow worm swift-80 ?

my glow worm swift-80 combi keeps dropping out when the main burner comes on
Mend Heating, Home Heating Systems

glow worn boiler says f9 on display and will not work?

glow worm combi boiler cxi not working says f9 on display tried the reset option doesnt work .
Mend Heating, Home Heating Systems

low hot water pressure?

i have a Glow-worm combi i dont know the model and the hotwater pressure is too low and getting worse also it ... [Read more]
Mend Heating, Home Heating Systems

is a glow worm micron 60ff a combi boiler?

is a glow worm micron 60ff a combi boiler if not what type? thanks
Mend Heating, Home Heating Systems

is it time to replace my boiler???

Glow worm swift flow120 combi boiler(1995). The boiler was working fine then stopped, Mr man on this forum su... [Read more]
Mend Heating, Home Heating Systems

glow worm combi boiler got power but mains light off & doesnt work?

I have a glow worm combi boiler & noticed mains light had gone out.Changed mains fuse - can hear boiler is rec... [Read more]
Mend Heating, Home Heating Systems

where in my boiler do i put the water?

where in my glow worm combi boiler do i need to put the water
Mend Heating, Home Heating Systems

Glow-worm compact 80 combi boiler hot water problem?

The above boiler when the hot water is swithed on it starts of warm but then goes cold ,what might cause this ... [Read more]
Mend Heating, Home Heating Systems

whats wrong with my boiler ?

i have a glow-worm ci combi boiler when i turn on the hot tap the boiler fires up ,plenty of cold water comes ... [Read more]
Mend Heating, Home Heating Systems

fitting honeywell thermostat?

when fitting a honeywell wireless therostat cm900 to a glow worm 35ci combi, do you connect the relay box to t... [Read more]
Mend Heating, Home Heating Systems

boiler foult?

glow worm 30ci combi boiler shows on screen F2 foult,and flashing red light, what it is ?
Mend Heating, Home Heating Systems

Express 100 combi boiler does not fire up?

My Glow worm Express 100 combi boiler is nearly 20 years old. I have a problem where the main burner does not ... [Read more]
Mend Heating, Home Heating Systems

How can i fix my glow-worm combi which is trippping my circuit breaker? ?

How can i fix my glow-worm combi which is trippping my circuit breaker. this started in the middle of the mori... [Read more]
Mend Heating, Home Heating Systems

how can i fix my combi?

my glow worm boiler is flashing f10 error code...which indicates something to do with return thermistor sensor... [Read more]
Mend Heating, Home Heating Systems

my Glow-worm combi boiler keeps over pressurizing when on?

when i start my my Glow-worm combi boiler the pressure rises from 1.8 bar to 3 bar setting the prv off then it... [Read more]
Mend Heating, Home Heating Systems

Low Pressure Light Lit - Pressure Fine Though?

Hi I had to bleed one of my radiators today which lowered the pressure on my Glow Worm Swift Flow 100 combi bo... [Read more]
Mend Heating, Oil Filled Radiators

boiler problem?

i have a Glow-worm swift flow 75 combi boiler. when i turn the heating on the boiler starts up but after a cou... [Read more]
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