Fix Fault Vaillant

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We have 1279 questions about fixing 'vaillant'

f22 code i have to keep toping it up every day sometime?

vaillant 838 combi boiler the pressure keeps dropping most days and i keep having to top this up how can we fix this


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How can I fix my plugin timeswitch?

just installed vaillant timeswitch (plug in 130). Timer is working (clock) but only calls for heat when switch is in "on" position. As soon as I switch to the position "clock", heating immediately go ... more


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Boiler Vaillant 824e turbomax ?

central heating has stopped working. it was connected with wireless thermostat, intially i thought something is worng with a wireless thermostat, so i decided to remove it and run the system with buil ... more


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How can I fix my vaillant combi boiler?

F22 flashing, don't know what tap to turn on


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Pressure vaillant echo Tec Boiler?

When i put the heating on for a few hours then turn it off and turn a hot tap on the pressure in the boiler goes and the water goes cold so i have to top the pressure up each time i have bled the radi ... more


how do i reprogram my ecotec boiler ?

I have a Vaillant ecotech 831 boiler, I get a status code SFH and have been told I should reset all the parameters, my question is how do i gain access to menu ?


Vaillant ecotech error message?

I have a ECO Tech and i have error message F75 with a red light can anyone advise. Have no heating of hot water and am disabled


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pressure gauge in the red zone / vaillant eco tec pro 28?

I have a Vaillant Eco Tec Pro 28 and when the central heating is running the pressure gauge goes up into the RED ZONE. But not all the time. It happens every other day. Is this a problem I can fix mys ... more


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how do i fill my ecto tec plus 618 ?

My water pressure has dropped as I bled the radiators. I cant remember how to refill it. The heating engineer did show me last year (he turned some sort of screw I think) but cant find them. va ... more


i've just turn on my heating and it keep flashing 0.6 bar?

I have a vaillant 824 eco tec, and it is making this funny noise and it keep flashing 0.6bar. What does it mean? Please help Ad


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vaillant turbo max plus 828e?

hot water is fine but centeral heatingnot fireing up when i put it on but green light comes on


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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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how to recommission thermostat ?

I've been told my room thermostat needs recommissioning Could you tell me how to do it please. The boiler is a vaillant & the room thermostat is a Drayton wireless. Many thanks


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 me but after few minutes the boiler start making funny noises . I dont know why ?


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Vaillant ecoMAX time SWITCH 110 gas boiler pressure problem?

My gas boiler vaillant ecoMAX time SWITCH 110 had a pressure problem and its not coming on. How can I fix it . No heating and no hot water . Thanks very much .


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how do i mend my vaillant boiler with a fr26 error code?

my vaillant boiler has an error code of fr.28 how do i mend this?


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Engineer manual for Vaillant VUW 242/1 E?

I am changing the hot water thermostat on a Vaillant TURBOmax VUW 242/1 E, 282/1 E Anyone done it or know where I may find an engineer manual / diagram showing it's location .. yep - I know - right ... more


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EcoTEC pro 24 Vaillant bioler flashing F22, water level 0.4?

Hi - I need help. My new EcoTEC pro 24 Valliant boiler is flashing F22 and showing he water level to be 0.4. I have looked online for info on fixing to, but the answers do not seem to apply to this mo ... more


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f24 fault code showing?

vaillant turbomax plus 824E


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Vaillant turbomax only hot on slow flow?

Hi I have a Vaillant Turbo Max that is only heating water to 40 degrees on full flow. If you turn the tap down to a dribble it will heat upto 60+. Aprreciate any advice


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