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We have 472 questions about mending 'boiler going hours'

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Worcester Boiler cycling and not heating properly?

After a few hours goes to ignition lockout. Cycles every 20s or so, even though can hold hand against exit pi... [Read more]
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Saunier Duval Combi Boiler Pressure Rises?

Hi Hopefully someone can answer this problem for me please? I have a Saunier Duval Thema Condens F30e Bo... [Read more]
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alpha boiler - hot water ok but only slight central heating ?????????

boiler is lighting and giving good hot water but the central heating is just lookwarm even after 3 or 4 hours ... [Read more]
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What is wrong with my central heating?

Hi My central heating and hot water will not turn on when requested. The electronic time is set to 24 hrs and... [Read more]
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how can i fix my worcester bosch greenstar 25si?

my boiler pressure keeps creeping up over a period of 24 hours or so causing relief Vv to lift.The filling key... [Read more]
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ariston flame lift?

My ariston combi runs on average about 1 hour to 2 hours and then goes to flame lift fault and wont start agai... [Read more]
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Ideal Boiler Not Starting?

I had a gas fire removed recently and a few hours later our gas boiler stopped working. Odd coincidence. Th... [Read more]
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Boiler Potterton Suprima 70?

My boiler is actually working fine and no change in performance despite a leak at the corner of the bottom of ... [Read more]
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Do I need to bleed my radiators ?

I have a Potterton powermax HE boiler which keeps losing waterpressure. I have topped up following the right ... [Read more]
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Problem with Valliant VCW GB 242EH?

My boiler stopped the supply of hot water and heating. Had a plumber out who changed the diaphram and the pump... [Read more]
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glowworm 24ci swiching problem?

My glowworm 24ci keeps trying to switch on even when it's set not to come on. It keeps coming on/off in burst... [Read more]
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Vokera 28 Compact gas boiler cutting out?

My Vokera Compact 28 gas boiler runs for a couple of hours and then cuts out, with the ignition light turning ... [Read more]
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Central heating stops after about 2hrs running?

I have an Ideal Mexico Super RS 80 boiler which seems to run the heating system for about a couple of hours wh... [Read more]
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How to fix my towerstat RSD thermostat?

Hello My radiators were not getting very hot so I looked at my thermostat and noticed that is wasn't working ... [Read more]
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What is fault F25?

Electric went off for four hours but unable to get vaillant ecotec boiler back on. Fault F25 shows. Any ideas?
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My Open Fire Back Boiler appears not to be working?

I recently decided to use my open fire back burner for the first time. The house is 22 years old and I've live... [Read more]
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re worcester nat gas non condensing 28cdi pressure?

thanks sd it rises from 1 bar to above 2.5, then bled it, cant remember it going that high till just lately a... [Read more]
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What does the error code "L.E."mean on an isar HE24 combi boiler?

Some times when the boiler is running on central heating,the cut out opperates and L.E.flashes.Nothing works u... [Read more]
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baxi bermuda inset2 boiler 50/4?

boiler had been shut down for about 3 weeks i put the controls to constant the boiler green light came on the ... [Read more]
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1980's Potterton boiler fires up, but radiators not heating?

My old boiler, regularly serviced, fires up, but the radiators don't get hot and I don't think the water is ci... [Read more]

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