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We have 41 questions about mending 'vaillant boiler changed'

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Mend Heating, Home Heating Systems

Vaillant igniting issue ( domestic ) not CH?

Hello to everyone, I have a Vaillant sine 18 T-3 combi boiler that was installed in 1985. Have had parts repl... [Read more]
Mend Heating, Home Heating Systems

Vaillant Ecotech Plus 831 F22 fault?

I've been having problems for 3 weeks now, and on the 3rd plumber, and still not fixed. First had F75 fault a... [Read more]
Mend Heating, Home Heating Systems

I have a Vaillant thermo compact plus 628E ?

Please can any one advise me on what I can do with a F23 fault on the boiler. Done flush and changed the pump... [Read more]
Mend Heating, Home Heating Systems

how can i fix my boiler?

i have a vaillant turbomax 242e changed diverter valve but still not getting hot water .gasman told me dhw hea... [Read more]
Mend Heating, Home Heating Systems

vaillant VUW 242e locked out?

as soon as boiler is switched on it goes to lock out immediately, pump runs, green light on, orange heating de... [Read more]
Mend Heating, Home Heating Systems

no hot water VAILLANT turbomax vuw 242e, 282e?

i have a vaillant boiler and have had no hot water properly for a very long time. my rads work fine. I had a ... [Read more]
Mend Heating, Home Heating Systems

vaillant ecomax?

the digital display is not working. i have changed the fuses on the pcb but im still getting no display. The d... [Read more]
Mend Heating, Home Heating Systems

vaillant boiler pressure keeps rising?

Changed pressure relief valve on my vaillant turbo max plus 824e,(pressure kept dropping) Now pressure now cr... [Read more]
Mend Heating, Home Heating Systems

how can i fix my vaillant turbomax plus 828e combi boiler (VUW GB 282/2-5)?

The central heating working fine but the boiler supplies only Luke worm water and after every few minutes the ... [Read more]
Mend Heating, Home Heating Systems

Topping up combi boiler?

I have changed a radiator on my Vaillant combi boiler operated central heating system. How do I bring the pres... [Read more]
Mend Heating, Home Heating Systems

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 Heating, Home Heating Systems

Vaillant Eco tec plus?

Hi We have just returned from a week away to find that our boiler pressure has dropped, topped this up but ... [Read more]
Mend Heating, Home Heating Systems

no power to boiler?

i have a vaillant ecotec pro boiler. the hot water stopped working the other day so i checked the boiler to fi... [Read more]
Mend Heating, Home Heating Systems

Ikon (Vaillant) Boiler problem?

6 months ago the boiler lost all power, the pcb was changed and seemed to rectify the problem. The same has ha... [Read more]
Mend Heating, Home Heating Systems

Vaillant boiler turbomax VUW 282/1E - increase to pressure !?

Vaillant boiler issue - increase to delivery pressure from pump, this varies in operation - i thought just a p... [Read more]
Mend Heating, Home Heating Systems

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 Heating, Home Heating Systems

Adding dispersants to circulating water?

We have a Vaillant Combi, whic is persistently (at 2 year intervals) having to have the hot water heat exchang... [Read more]
Mend Heating, Home Heating Systems

Vaillant boiler VCW 242/282 EB, Hot water problems?

Hot water is excellent to other DHW taps in the house. Recently changed Kitchen mixer tap (aereated water ).No... [Read more]
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vaillant turbo max?

only have hot water when heating is on , have changed diaphragm, still same , if boiler on hot water only, and... [Read more]
Mend Heating, Home Heating Systems

vaillant ecomax pro boiler not working ?

we have recently changed the radiaters thermostat and boiler stopped wworking,we took the advise for fault f6,... [Read more]
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