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Mend Vaillant Home Heating Systems

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We have 1605 questions about mending 'vaillant' in category Heating, Home Heating Systems

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Mend problem pump fires
2

what is the problem?

vaillant turbo plus 828E. There is no power to block4 and when I connect power to it the pump comes on and the... [Read more]
Mend problem valliant hot water

what is the problem?

I have a valliant turbo plus 828E which is giving us hot water but no heating to the radiators.
Mend boiler not working
1

boiler is not working?

my boiler fails to work the message on the failure window is f28 on vaillant 824/2e boiler
Mend vcw 242 eh
1

Vaillant Vcw Gb 242 Eh pilot light comes on 4 water but not the heating? ?

Hi, when I turn the hot tap on the pilot light sparks in thye boiler and the water becomes hot. When I turn th... [Read more]
Mend vaillant switch boiler

how can i fix my vaillant turbomax plus 828e?

sometimes twice a day i have to switch the boiler on and off to make the boiler go its a vaillant turbomax pl... [Read more]
Mend boiler heating vaillant

vaillant turbomax 242e vuw?

i have had the diverter valve overhauled, now the boiler fires up fine except for the heating which will only ... [Read more]
Mend problem flashing boiler

how to fix f2 problem on vaillant 30ci?

f2 flashing on vaillant 30ci boiler can i fix myself
Mend hot water code
3

Vaillant Ecomax 828 E?

I currently have central heating, but no hot water. The error code is E12. Does anyone know how to fix it?
Mend Vaillant Fault Code Low Pressure
1

Where is the water switch- Vailant Ecomax 824-Fault code F25?

My Vailant Ecomax is showing a fault code of F25 (water switch - low pressure) I have checked the pressure whi... [Read more]
Mend help water working not heating
1

Help - water working, but not heating?

My Vaillaint boiler has had 8 engineers out in 7 weeks and still the heating won't switch on. The exchanger h... [Read more]
Mend pressure boiler bar
1

vaillant turboplus losing pressure daily?

my boiler is losing pressure daily, i keep topping it up to between 1 & 2 bar and then within 24 hours its bac... [Read more]
Mend boiler fire turn
1

How can I fix my Vaillant combi boiler?

I have a vcw-gb 242 combi boiler and now find the central heating wont fire up. When i turn on the hot water t... [Read more]
Mend diaphragm turbomax vuw
4

How long shoud it take to replace a diaphragm on a Vaillant?

We have a Vaillaint Turbomax VUW 242/1 E,282/1E How long should it take a trained engineer to replace the d... [Read more]
Mend boiler fine radiators
1

Valliant turbomax boiler, but no hot water?

I have no hot water at all, heating works fine though. I have a leak on one of my radiators, which I have swi... [Read more]
Mend water heating switch set

Only get hot water when heating is on with Vaillant Combi boiler?

I am unable to get hot water when switch is set to domestic hot water. However I am able to get hot water whe... [Read more]
Mend vaillant system boiler

vaillant f67 fault?

ecomax 635 system boiler showing the above fault??
Mend boiler will reset
2

F.28 Vaillant thermocompact boiler will not reset?

Re Vaillant thermocompact bolier F.28 display - my stepfather bled my radiators around 6.30pm and by 10.30 the... [Read more]
Mend water boiler shower

Vaillent ecoMAX dodgy water temp?

I have a Valient ecoMAX condensing boiler, when I run the bath or shower the water runs hot for abour 3 mins a... [Read more]
Mend boiler turbomax hot
4

Vaillant turbomax plus 824e confounding the 'experts'?

My boiler keeps on locking out showing f.22 or f23. I have had two 'experts' look at it, one changed Almost ev... [Read more]
Mend fill boiler water
2

how do i fill my boiler with water?

My valliant fan assisted condenser boiler is showing as 0.4 bar in the manual it says fill with water but i am... [Read more]

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