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Mend Boiler Working Fault

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We have 303 questions about mending 'boiler working fault'

How to mend ... Boiler Working Fault

Mend hot water ch normal

No Hot Water But CH is normal???

My Vokera Linea 735 boiler isn't heating up the hot water but the central heating is working perfectly. There... [Read more]
Mend diverter valve not operating

diverter valve not operating?

Hi I am having a problem with my potterton performa 28i boiler. Central heating works fine. Dhw giving cold ... [Read more]
Mend work fires house

Glow Work 30hxi Boilers fires up and stops. No heating in the house?

Glow work 30 hxi boiler not working. Tried to restart. It fires up, green light comes on and runs for a couple... [Read more]
Mend junior hot water heating

Worcester 28i Junior Combi... Hot water but NO Heating ???

Hi everyone, We have a Worcester 28i Junior Combi which developed a fault this week. We have hot water fine b... [Read more]
Mend boiler fan keeps running

Worcester Boiler - Combustion fan keeps running, Why?

Good Morning, I have a Worcester Boiler, model - Danesmoor 15/19 (HPJ.19000.) and it's working OK apart fro... [Read more]
Mend glow worm light

Glow worm 18hxi boiler with f5 fault light?

After a problem with my fuse box, my heating is not working, I have checked the boiler (Glow worm 18hxi) and I... [Read more]
Mend boiler intermittent fault water

Sime EcomfortHe boiler 18mohts old?

heating working ok but intermittent fault with hot water, sometimes none sometimes ok
Mend sabre light boiler

Sabre 24 se red light from overheating?

Hi, Sabre 24 se compact boiler, heating goes on but cuts out after 20min when rads get very very hot, boiler k... [Read more]
Mend boiler not heating up

Boiler not heating up?

The gas supply (prepay meter) went off in the night and was put back on in the morning. The boiler is on and ... [Read more]
Mend light worcester blue

Mains indicator on/off light on worcester 25i not working ?

Why does the blue mains on/off indicator + fault diagnostic light illuminate when the boiler is running? Sys... [Read more]
Mend system boiler pilot light

hielp my chaffoteaux britony system 2 boiler pilot light gone out?

my chaffoteaux britony system 2 boiler pilot light gone out and the reset button seems to have stopped working... [Read more]
Mend ferroli 31c he

how can i fix ferroli 31c he?

I have ferroli optimax 31c he. the problem occured all of a sudden.The front screen on the front of the boiler... [Read more]
Mend vaillant fault boiler heating

Vaillant ecoTECH 637 - F.15 fault?

Boiler is 2 years old and has been working well. Heating comes on with timer and then goes off after about two... [Read more]
Mend vaillant boiler fault pressure

Vaillant ecotec 466 boiler f.75 5er code?

Hi we have the above boiler which has been displaying the F.75 fault code. We have had the pressure sensor cha... [Read more]
Mend bit boiler switch

How can I fix my vokera compact28?

Looking for a bit of advice, my boiler keeps cutting out after half an hour, once switch it off and on again i... [Read more]
Mend flame system boiler

how do i fix flame lift on my ariston genus system boiler?

had an intermitent fault since it was new ,cant seem to get it sorted out now the fault is constant . The boil... [Read more]
Mend baxi instant he

Baxi 105 instant He problems?

I have the above boiler 4 years old and am looking for any advice as really hope i dont need to get a engineer... [Read more]
Mend worcester sensor boiler

Worcester Greenstar 18Ri Volatile Lockout...which sensor to replace?

I have a Worcester Greenstar 18Ri boiler which runs for about 60 seconds before stopping with a fault code of ... [Read more]
Mend Heating, Home Heating Systems

What is the F4 fault on Glowworm Flexicom 18HX ?

Our Glowworm Flexicom 18 HX gas boiler is not working-F4 is dissplayed, have tried to reset it, but but still ... [Read more]
Mend ferroli combi boiler

Ferroli combi boiler F1 fault?

Ferroli combi boiler F1 fault? Any help appreciated. The gas meter is open and working fine. Boiler shows f... [Read more]

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