How to mend ... Main Burner Hot

How can I fix my main combi 24HE?

When I turn Combi on and run hot water tap on i have water running down side of Burner housing; lose pressure ... [Read more]

ferroli combi 77ff boiler will not ignite?

my boiler will not ignite when you call for hot water or central heating. the pilot light is lite,the pump is ... [Read more]

ravenheat csi 85 a [t] boiler?

main burner fires up on off repeatedly, heating water gets hot, domestic gets hot for few minuits then runs co... [Read more]

how can I tell if the gas valve is being switched?

We have an old Potterton Netaheat 5/10 boiler, everything seems to be working, except gas to the main burner! ... [Read more]

no hot water ?

pilot was on. turned on tap no main burner maybe air pressure switch as number 7 led is not on.now i have no p... [Read more]

water problem with my britonyiit model water heater?

pilot light is lit but when hot water tap turned on the main burner does not light any suggestions please

How do I stop my pilot being extinguished when the main burner ignites?

Baxi 701 RS The pilot lights fine and the thermocouple glows nice and red hot. At times, when the main burn... [Read more]

Glow-worm Compact 100 Pilot Light is on main burner wont fire?

I have Glow-worm compact. The pilot is on and is large enough. When the heating or hot water is required, its ... [Read more]

vaillant 221H hot water problem?

When running bath water the water starts out hot and then goes cold and then hot again. When watching the main... [Read more]

potterton netaheat 12-16 mk2?

pilot light clicks on(i can see it has lit) then i wait for the main burner to come on but it doesnt always co... [Read more]

Potterton Prima 40 B fault?

hello, can anyone help? Our gas boiler has developed a fault( christmas eve) pilot light all okay but boiler w... [Read more]

What could be the problem if boiler fails to fire up?

main burner does not ignite, boiler fails to fire up, pilot light ok, pump ok, room stat ok. programmer ok.No ... [Read more]

Main Combi 24 HE problem?

The power on light is lit - burner on and flame failure are un lit - pressure bar just above 0.5 No hot wate... [Read more]

boiler keeps going out?

hi i have an old thorne olympic boiler..i have changed the thermocouple and the pilot light stays alight...but... [Read more]

How can I fix my C & M Britony Flexiflue GC no 52 980 22?

When hot-water tap is turned on, fan stops (or fails to start) after a second or two & main burner does not ig... [Read more]

boiler does not go to main burner?

i have power to all my components but when i turn the heating or hot water the main burner dosen't come on and... [Read more]

How can I fix my Potterton 16/22 Netaheat Electronic LPG boiler?

My boiler that, up to now, has given about 20yrs of excellent service, gives similar symptoms to the 'Prima F'... [Read more]

Worcester 240 Boiler. Water is hot with tap half open, cold when fully open?

I have a Worcester 240 gas boiler. Recently, I've noticed that if a hot water tap is partially opened there is... [Read more]

Potterton Prima 50 F main burner will not remain on?

I've got a twelve or thirteen year old Prima F which has run reliably until the last year or so. I fixed the u... [Read more]

no hotwater?

turn on hot tap burner lights and then no or very low hot water but main burner still at full rate