How to mend ... Turns Second Pump

Micron 40ff heating up then cooling right down before starting up again. ?

Please help I have a Micron 40ff with radiators with TRV's & a room stat, I replaced the old style PCB about 3... [Read more]

Glow worm Hideaway FF?

I have a Hideaway 60FF. It will always ignite when system starts in the morning but as soon as the room reache... [Read more]

My Glow-Worm Ultimate 70FF won't light?

The boiler fails to light, with no spark at the electrode. The pump turns on and off under control of the room... [Read more]

ideal classic boiler turns on stays on for a few minutes?

boiler turns off after few minutes heat in rads is very poor changed pump

Glowworm / Glow worm compact 80e locking out not working !!?

Hi I have a new compact 80e installed which I bought about 1 year ago. The boiler was a surplus and had bee... [Read more]

Ravenheat CSI 85T?

Hello, I've had a good look around this site and can't find an identical issue, so I'm hoping someone can h... [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]

my central heating pump does not turn itself off when boiler turns off?

we have a grunfos central heating pump that does not always turn itself off after the boiler has been turned o... [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]

Pump and Boiler always running?

Even if the programmer is off for both water and heating, if I turn the boiler stat up until it clicks, the bo... [Read more]

Boiler not firing up. Help please im cold !?

Help, I have a Glowworm SpaceSaver 52, The boiler apart from hot water has been mostly off during the summer, ... [Read more]

poterton performa 12 he?

this is a brand new boiler that rarley starts.when the timer asks for heat the boiler turns the main pump on a... [Read more]

Heating Fault - Pump continually runs (Maxol microturbo 402)?

I have a Maxol microturbo 402 domestic boiler that is used for the central heating and hot water in my home. T... [Read more]

Ideal classic boiler cuts out after 2 mins?

I recently had a water leak in my house, so i had to turn off the mains and drain the system. When I turned o... [Read more]

my Glow-worm spacesaver mk2 main burner does not light,?

boiler has stopped heating water, the main burner does not work, pilot light is lit, and the pump runs,new pum... [Read more]

Potterton Netaheat - pump is on when system is off?

I have a Potterton Netaheat boiler - (not sure of the model number). This morning, although the system was tu... [Read more]

i have tred to bleed my radiator but it hase suck more air in ?

Now the bioler only comes on for a few seconds then turns off, also what lookes like a pump in the airing cupb... [Read more]

Whats wrong with my Boiler ,sime farmat 80c?

Hi there I realy need help with my boiler, everything turns on fine apart from when its about to fire up, w... [Read more]

How do I fix Sime Friendly Format 80?

Unit turns on and powers up for a second but then 'locks off' and then tries again. Pump seems to be working b... [Read more]

SIME Friendly Format 100e Stop/Start/Stop/Start/Stop?

My combi boiler switches on, fan turns but no flame and so no hot water. Runs for two seconds and switches off... [Read more]