vaillant

Hey people small issue here on my Boiler. It’s a Vaillant Ecotec Pro 28, yesterday I drained the central heating system as I was having some pipe work done for a new towel rad in the bathroom. Also turned the mains water off and opened taps to get all the water out the pipes forgot to turn the...

Hi all, I believe we have a Vaillant Turbomax boiler although I'm unsure of the exact model number. The pressure has been low for a couple of years but only recently on a couple of occasions it has failed to fire up. I just pressed a button and it switched back on immediately. A gas safety...

Hello, having a bit of a 'mare with this one, so though I would seek out some help. I have a Vaillant ecotech pure installed recently (the version that fits in a cupboard) around 24kw I think. It seems to be using a huge amount of energy but never quite getting the rooms warm. I'm looking into...

I have been sent this picture of a Vaillant boiler where the pressure needle is down at the bottom. I advised my friend that it (obviously, doh!) needs re-filling and I superciliously (super-silly?) told my friend there should be something obvious on the underside... but - sadly - this picture...

I've got an issue with my Vaillant TURBOmax 828E combi boiler and I am hoping someone might be able to help me understand the likely cause of the problem before I call out an engineer. The hot water occasionally goes cold mid flow. I first noticed this when taking a shower, so I had a look at...

Hi, I am getting the F22 message on my Vaillant hr Solide boiler (VHR Netherlands version). The bar reading is low too at 0.5bar. So I would like to top it up. In the attached image, you can see there are two valves, black on the right attached to the yellow pipe (nothing attached on the...

Hi all, Just wandering is the nest compatible with the vaillant ecotec 838 plus combi boiler? And if so, does anyone have an appropriate link with how the wiring should be undertaken. The boiler is a brand new install with no current thermostat installed. Any help and advice would be largely...

Hi - hopefully someone will be able to help Have a Vaillant boiler which generally works fine but never seems to reach target radiator temp. Hot water supply to taps etc is fine. For example it’s about 1 degree outside today. Thermostat is set to 23 and triggering the boiler. Despite this the...

Firstly, I'm not going to attempt to do any rewiring my self - but I do have a Gas Safe plumber on the job currently (waiting for an internal pipe that is leaking a bit), and I want to get informed on our situation so when he comes back we can get it sorted asap. I have a Y plan heating setup...

Do the noises indicate any apparent problems like trapped air or pump issues? Drained and re-filled system last night to remove any trapped air but no joy as you can see; even if it's just on hot water to only heat the cylinder which is the closest 'radiator' to the boiler (also tried heating...

Let me first list the set-up we have: Vaillant ecoTec Plus 637 system boiler Zilmet unvented hot water cylinder with external expansion vessel 1 zone valve for Central Heating 1 zone valve for hot water cylinder 1 Grundfos 15-50/60 circulation pump (on flow pipe from boiler) 16 radiators...

Dear whoever can help.... I installed a full (18 feed, 4 story) radiator system into my own house 14 years ago. It’s a 1860 building ... I used the Vaillant turbomax 828e...Over the years I have replaced the pressure switch once, the fan assembly once and the PCB once due to a intruding slug...

In June, the boiler showed an F20 safety switch off temperature limiter, sign. We had the Vaillant engineer come out, who told us that the water pressure was the problem.We were also told the TRV4 on our radiators are not suitable for our boiler. Something about a bypass. The heat needs to go...

Hi, Have bought a house and inherited a Vaillant EcoMax 835/2 boiler, about 10 years old. Seemed to be working at first. However it started to give f25 faults and now alternates between f25 and f32. You can clear the fault and then it might work, but sometimes it takes 3/4 attempts. When set...

I have had a Vaillant ecoTEC boiler with the VRC430f Weather Compensating Controller for several years without any serious problems. Recently, the external temperature sensor has been showing 18 or 19C, so the heating is not doing a lot. The Signal Strength screen in the VRC's Installation...

Fairly complicated one this, but would appreciate any input if anyone has any thoughts. Currently, have a old, Baxi Boston boiler, with pumped CH, gravity Hot Water in our house. Works great, added a NEST to it that made it pretty easy to control and make the house warm when we want it. Like...

I've got a Vaillant Turbomax Plus 837e. Lately it's had a few instances where it just doesn't deliver hot water. Possibly happens once a week, I press the 'reset' button, the boiler restarts and all is well. However, this morning it's worse. A reset doesn't help. If I turn the mains power off...

Hello, Can anyone help identify the manufacturer date of a Vaillant GA92-180SP boiler with serial number 319-1098? Thanks.

I recently moved into a house and the boiler installed is a Vaillant EcoTEC plus 618. There is hot water tank for the shower downstairs and that has a water thermostat on it too. Boiler: Vaillant EcoTEC plus 618 Hive Dual Channel I have attached the current wiring of the Hive, which does not...

Can anyone please help. I'm brand new to this forum so please bear with me. I have moved house and there's a vaillant ecotech pro 28 boiler with the old style (hands and pins) clock dial. It seems the clock is running slow and losing around 30 mins per day. What can I do please?