Recent: Royal cms-481?

Mend Glow Worm Ultimate 100FF Home Heating Systems

Mend Heating, Home Heating Systems
Find out how to mend it for free.
Ask Question
Mend Heating, Home Heating Systems
Free repair help for Glow Worm Ultimate 100FF home heating systems

Mend Home Heating Systems

Mend sabre pressure water

Sabre 29 water pressure drop?

sabre 29 water pressure dropped, how to increase the pressure
Mend boiler greenstar cdi heating

Worcester Greenstar CDi boiler won't fire up the central-h?

flashing green light near the CH select button new batteries in transmitter
Mend Heating, Home Heating Systems
1

How do i stop the time from flashing on the Siemens RDJ100RF?

How do i stop the time from flashing on the Siemens RDJ100RF unit
Mend Heating, Home Heating Systems

Flamerite Isis Fire?

i need a new mother board for my flamerite isis fire do you know where i can purchase one
Mend Worcester Combi Ignition
2

Worcester 30 Cadillac combi boiler won’t fire up and the EA?

my worcester 30 cdi combi combi boiler wont fire up and ''ea'' keeps flashing? my worcester 30 cdi combi bo... [Read more]
Mend Home Heating Systems

Mend > Home Heating Systems

Mend Glow Worm Ultimate 100FF Boiler Water Tank System Heating

How can I get my Glow Worm Ultimate 100FF boiler working?

I have a sealed water sytstem with a pressurised Megaflow hot water tank. Occassionally the system pressure just drops to almost zero for no reason and the boiler will not fire up again. I think its the water pressure switch that effectively switches off when the pressure drops but I don't know how to reset it. I've re pressurised the system to 2 bar but still it won't fire. Any ideas?

Jim Thomas
December 2009
Glow WormGlow Worm Ultimate 100FFHeating, Home Heating SystemsBoiler Water Tank System Heating
It might also have overheated when the pressure was low (less water content, too much heat) I think that there is a reset button on these, its been a while. Red with a cross shape button push this in , you'll feel it click. Then fire it up

Mark gas engineer
December 2009

Automatic Answer

We may have found other answers which could help you.

Click here for Boiler Water Tank System Heating
Mend heating boiler troubleshooting

Why are my radiators are not heating?
Mend boiler heating glowworm

boiler internal fuse keep blowing out!?
Mend central heating boiler months ago

how can I fix my old glow worm central heating boiler model 65-80?
Mend burner hot water help

Glow worm 100E small burner flame, now hot water?
Mend heating radiators fault

Glow Worm Fuel Saver F not working properly ?
Mend boiler pump pipes

Why is my upstairs heating always on?
Mend fault code ignition heating

loud bang when boiler fires up, fault code F1 if it fails to fire?
Mend heating boiler thermostat

why is radiators hot when only water is on..HELP?
Mend heating pilot light thermostat

Glow worm 45/60 not firing up?
Mend boiler ignition gas engineer

What does F43 error message mean on Glow Worm 24/30cx?
Mend boiler lockout fan

how can I fix my Micron 80FF Glow Worm Boiler?
Mend thermostat heating boiler

Replacing LP112 Programmer?

Other models...

Glow Worm 18hxiGlow Worm 30 CXIGlow Worm 30ciGlow Worm 30CXIGlow Worm Swift Flow 80Glow Worm Ultimate

How to mend ...

Find out how to mend just about anything howtomendit.com for free repair help, information and advice.
Mend Home Heating Systems ...

Related Categories

Mend Convector Heaters
Convector Heaters
Mend Fan Heaters
Fan Heaters
Mend Oil Filled Radiators
Oil Filled Radiators

Mend Heating, Home Heating Systems
Free repair help for Glow Worm Ultimate 100FF home heating systems