Hi, I have a Vaillant system boiler setup with the new (July 2023) ecoTec 630 and a VR71 wiring centre. I asked Vaillant before purchasing this...
Hi, I have a Vaillant IQ Combi boiler that is displaying F.55 which indicates a bad co sensor. What kind of problems will this cause running the...
Dear All, Please kindly advise, i don't know what else to do! Had new boiler Vaillant 424 heat only open vent boiler installed with new flue and...
I have a heating system configured with s plan wiring. There are two zones and one pressurised hot water cylinder. The are three 2 port motorised...
Hello, I’m hoping someone can help as I’m getting differing advice every time I speak to Vaillant; We are refurbishing a property and installing...
Hi all, I’ve removed a couple of rads but i’m now looking to install new rads and TRV’s which would mean isolating/draining the system. Even...
Hi, I've got a Vaillant Turbomax boiler, there is hot water for a couple of minutes then goes cold. The pressure is at 1 when the boiler is not...
Hi, i have a Vaillant boiler which had heating but no hot water, I assumed it was the diverter valve cartridge getting stuck so I replaced it, and...
Morning all. I'm struggling to get to the bottom of this one so would appreciate some advice please... The equipment: 15y old Vaillant ecotech...
Hi all, this is my first thread here. Sorry in advance, if I break the rules. I've recently moved to a flat in Germany and it has a boiler in...
Hi We are getting the message 'Heat Generator Fault' on our Vaillant ecoTEC Sustain 34 boiler thermostat. we do not get any error code on the...
Once before have you come to the rescue, ScrewFix hive mind, so here’s hoping you can help me with my conundrum: My boiler is making a buzzing...
Hi Guys, My 2yo "Vaillant Ecotec Pro" Combi boiler works great, however when i use 1 particular hot tap out of 4 which are all on the same...
I have a small question, my vaillant boiler is losing pressure every night when the heating is off. So when I wake up, the boiler shows the errors...
I have to have my combi boiler replaced and have been recomended either a intergas eco rf or hre, or a vaillant ecofit pure 835, which is better.
I have just moved into a new house. The boiler works fine apart from the clock, which is one of the manual clock faces where you pull the markers...
hello, I need to change the batteries in my thermostat and the manual says to “carefully push the retaining hook to the side using a small...
Hi. Got a Vaillant ecoTEC pro combi boiler which is about 10 years old. I had a plumber come today as our boiler continually turns off with a F.62...
Hi, I have a Vaillant boiler and was wondering if the fittings (elbows and 45degree) and pipes can be installed externally??? currently side...
Separate names with a comma.