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We have 660 questions about mending 'boiler not start' in category Heating, Home Heating Systems which have been answered

How to mend ... Boiler Not Start

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my vaillant eco tec plus does not start it shows nothing in the display?

The hot water stopped . There appears to be no activity from the boiler and there is no display .
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Boiler making humming sound when first on. No display only flashing dashes?

Boiler makes a humming noise when switched on, works for a while then goes off completely. After a few days ... [Read more]
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How can I fix my comby gas boiler vaillant ecoMAX pressure problem?

Thanks for letting me know about my gas boiler vaillant ecoMAX pressure problem , I did tried the way you told... [Read more]
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Vokera boiler problem?

Central heating works fine but the hot water is a nightmare, can start hot but then runs cold I may be mistake... [Read more]
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glowworm micron 60ff-keeps cutting out?

I've had this boiler 12yrs--when it's on its fine! But it keeps 'going out' with the green light flashing. To ... [Read more]
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Valiant Eco Tec 837 combination boiler ?

with the above boiler. (3 years old) I have a leak from the above boiler with water dripping from the lower... [Read more]
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no hot water?

I cant get the boiler to start heatin water for anything
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Stelrad Ideal RS40 Pilot Light?

Have just moved into a new house and had re arrange the radiators therefore drained down the system. Its been ... [Read more]
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My Halstead Ace boiler not working?

My Halstead Ace boiler Appliance number 47 333 16 is not working porperly, the power is there and the timer fu... [Read more]
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'f19' error report - Saunier Duval 'Thermoclassic' boiler?

Recently my boiler is failing to deliver hot water. - It is hot at first then runs cold. On examination I fin... [Read more]
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how can i fix my boiler?

grant euroflame utility oil boiler, fan has a slightly stiff section so motor wont turn fan.so boiler wont st... [Read more]
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Boiler fails to start when cold?

Have got a vokera maxin 28e boiler which has been moved from kitchen into garage however now when cold it fail... [Read more]
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28i Junior Low Water Pressure Switch?

Hi, Have got a lockout problem with my Worcester 28i Junior. Does not like to start if it has not been run ... [Read more]
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How to repair faulty Boiler?

I have Vaillant eco Tec Pro 24 and when I start open the boiler start ignite for 10 second and shutdown and do... [Read more]
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My sabre 29he boiler is cutting in and out every 8 to 10 seconds?

I have a sabre 29he boiler its going thru the start up process with flame and fan then it cuts out the red lig... [Read more]
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Potterton Suprima 80L?

The boiler works with no logout. The lights operate as per the manufacturers manual. After 60 seconds the boil... [Read more]
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ravenheat csi condensing boiler?

i had the gas turned of to have a new gas meter fitted and now my boiler wont start up is the pilot light auto... [Read more]
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Heating cutting off for no reason?

My central heating keeps cutting itself off, a red light comes on and flashes on the boiler and i have to rese... [Read more]
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Combi Boiler problem?

Hi ,I have turned my water off and back on again and now cant get my combi boiler to start back up. I have tri... [Read more]
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how can i fix my boiler ferroli optimax 25c?

will not start, i,ve changed pcb , pump, diverter switch, i think the new pcb may need re-programming but i ... [Read more]

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