Boiler over pressure on the hot-water side?

My vaillant boiler dial is in the red on the hot water side

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vaillant 824e turbo max?

rads get hot go cold wont fire back up ,have to swich off then back on

could anyone help me please my vaillant boiler wont switch on?

my valliant boiler wont switch on, the fuse is ok, the lights on the boiler are off even when i switch it on

vaillant boiler trips house electrics when hot tap on?

When i put hot tap on or fire up the heating the main rcd trips on the fuse board.any ideas

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Vaillant Turbomax 824 overheats very quickly in heating mode?

My Vaillant Turbomax 824e overheats in heating mode all of a sudden after 12 years working fine... I replaced pump as advised then fitted new bypass after talking to Vaillant helpline... Hot water wor ... more

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Diverter Valve Replacement?

Hi, I am going to attempt to replace the diverter valve on my Vaillant Turbomax 824E Combi Boiler. I have seen a previous thread (http://www.howtomendit.com/answers.php?id=23613) which has some i ... more

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boiler starts then soon stops?

my vaillant combi boiler cuts out after a few minutes. it needed atop up but not been right since i have done it. any clues please ....

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We have no hot water?

I have a vaillant Turbo Max VUW GB 242/1E and the central heating works fine, we have no hot water from the taps and shower, is this the diverter valve broken?

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I have a switch 110 vaillant combi boiler?

The pressure had dropped to zero , i made a call and was told how to fill the boiler back upto pressure , great... the green light was on but now i have no hot water and no heating and 20mins after, i ... more

vaillant combi not firing up?

after fitting an extra rad and refilling the system the vaillant turbomax plus 824/2e combi will not fire up for the c/h or hot water whats wrong any ideas ?

Vaillant turboMAX 824E?

Hello, the timer is not working on my boiler. When the timer is set it starts to lag behind 'real time' within minutes. Does it just need a new battery? If so could anyone give me step by step instru ... more

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HW issues w. Vaillant boiler?

My Vaillant turbo Plus 824E is playing up for the last few months. One morning there will be no HW, the next morning its boiling, or it'll be hot and suddenly change to freezing cold. It sounds it wan ... more

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water temp going up and down?

the problem is that when i take a shower, water stays hot (as i like), then starts to go cold'ish, then back to hot'ish. if i turn tap to make it hotter, it goes hotter, then cold'ish again. and it co ... more

water dripping out of overflow pipe from boiler when CH on?

I have a Vaillant combi boiler and when i put on the CH water is dripping from a pipe that looks like an overflow pipe going from back of boiler to outside wall.Does anyone have an idea what the probl ... more

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