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  1. R

    Vaillant Eco Tec Purge

    Hi. Our Vaillant Eco Tec Pro 28 (13 Years Old) stopped working two days ago. The boiler was trying to fire up but the start up sequence never got all the way through so no heating or hot water. No error code but an S.97 code when I hit the 'I' button. After an engineer fitted a new pressure...
  2. R

    Vaillant ecoTec Plus 831 Filling Loop End Caps

    Good morning all Vaillant ecoTec Plus 831 Filling Loop Can anyone recommend a pair of suitable end caps for the above? An Amazon or eBay link would be good. Thanks
  3. J

    vaillant ecotec pro 28 buzzing noise issue

    Hi, it sounds like a bee, happens intermittently with rads on only, goes off when you open hw tap Video - https://drive.google.com/file/d/1eGBfQHfTCeM7s8z51rV2yhXCyRC2AppK/view?usp=sharing Thanks
  4. E

    Vaillant eloblock board

    Hello, I need a clear picture of the electronic board of Vaillant eloBlock, so that I can read the electronic components of the board, the board to be photographed up close in order to read the electronic components, thank you for your help
  5. C

    Vaillant EcoTec Pro comes on randomly

    Hello, I hope one of you good people can help. We have a Vaillant ecoTec Pro boiler, it's about six years old. Today, for the first time, it's started acting up. By that I mean it's heating the radiators even though the portable thermostat thing that sits down here shows that the temperature...
  6. T

    Vaillant EcoTec Pro 30 - Loud clicking noises every few mins after heating starts

    Our Vaillant EcoTec Pro 30 makes a loud clicking noise every few mins after the heating comes on. Eventually, after about 10-15mins it stops, but the weird thing is it also happens the same (clicks every 2-3 mins for 15 mins) after the heating is switched off. Here is an edited clip of the clip...
  7. G

    Connect HeatMiser UH8 to Vaillant system boiler.

    Hello everyone, Could do with some advice please This is my current setup: Vaillant ecotec plus 637 system boiler Unistor unvented cylinder Vr66 wiring centre Vrc 470f S plan system Now I have just had underfloor heating installed and a HeatMiser UH8 wiring centre, a new motorised valve...
    • GG1
    • Thread
    • boiler system vaillant
    • Replies: 1
    • Forum: Boilers
  8. D

    Vaillant ThermoCompact F22

    Hello dear people of plumbersforum, I am coming to you in a dire situation as winter is setting in in Scotland and my Boiler just decided to be annoying. About 2 days ago, I woke up freezing, with my radiators ice cold even though my boiler was still perfectly fine the night before. The...
  9. E

    Vaillant EcoTec Pro not reaching set temperature

    Hello! We have 3 years old Vaillant boiler and recently we noticed that it's not reaching set temperature. I set the temp to 50 deg C, and then when we open the water, it starts burning and burns about 4-5 sec. then it stops. around 46 deg C. Water cools down a bit, then it starts burning again...
  10. B

    Vaillant EcoTec 630 - will only partially fire and won't heads the rads

    Morning all, I'm new and shiny here and seem to have developed a heating problem this morning. Any pointers for a quick resolution would be appreciated as my ears are now hurting! :rolleyes: I have a Vaillant Ecotec Plus 630 driving rads, hot water and underfloor heating in some of the house...
  11. Audronius

    New Home Struggle - Vaillant Ecotec + Drayton Digistat

    Hello, Recently moved into a new rental place, struggling with the heating equipment. I'm not a plumber or heating expert, did the troubleshoot I could think of with no success so seeking help from more knowledgeable people here. Equipment: Vaillant EcoTec Pro 24 boiler plus Drayton Digistat+...
  12. T

    Vaillant VHR 24-28C replacement parts

    Hi, It is a bit of a long shot but I hope someone can point me to the right direction. My parents have this ancient boiler that needs one part to be replaced. I am not sure how it's called in English but I have photo. Hope it clarifies things up. It's this big aluminium part. Sorry. I also...
  13. CorgiDirect

    Best Prices on top, Ideal, Vaillant, Glow Worm, Heating Spares

    We have introduced a range of top heating spares from select manufacturers , Take a look here Heating Spares - CorgiDirect - https://www.corgi-direct.com/heating-spares-17866-0000
  14. R

    Very loud Vaillant water heater, video provide

    I have a solar powered water heater, on some days its extremely loud for a few hours. Most days it's silent and there's no noise when the sun goes down. First video is with the cover on when it's making the most noise View: https://youtu.be/AgFyb34Ej9s Second video when it calms down a...
  15. M

    Vaillant filling loop leak

    Afternoon all, My boiler pressure is slowly rising above green every other week and I've located the leak to be the check valves on both sides of the filling loop. Is there anyway I can cap one side off untill I can buy a new part? Furlough has made it hard financially atm. I've included a...
  16. P

    Help me understand my Vaillant boiler!

    Hi All, The house we moved in to a year ago has a Vaillant Ecotec 428 fitted and I'm trying to get my head around how it works. This is my first time as a home owner and never lived in a property in which I've had access to the boiler until now, so trying to get my knowledge to where it should...
    • PeteCUK
    • Thread
    • boiler vaillant
    • Replies: 18
    • Forum: Boilers
  17. D

    URGENT Vaillant 824E 50p model

    I’m after installation service manual for vaillant Ecomax 824 E ( 50p model ) gc 47 044 07 tried Vaillant they don’t have copy can’t find on line or on my many downloads davidfal
  18. G

    Vaillant ecoTEC Plus 938 - Low Flow Rate

    Hi guys. Hope you are able to help me, and thank you in advance for anyone who can contribute. I've got a Vaillant 938 and notice that the hot water output isn't near the claimed flow. I've tested the pressure at the stopcock and it's around 3 bar. I've tested the cold flow rate from the...
  19. P

    Vaillant Ecotec vertical flue minimum distance from soil pipe

    Hi All Has anyone ever questioned the reasons why Vaillant MIs for their vertical flue termination refer to damp exhaust air escapes from “channel vents” may condense in the air pipe and cause damage to the product, this would suggest that the flue terminal has to be at least 1 meter away on...
    • Paul Mc
    • Thread
    • ecotec flue pipe soil soil pipe vaillant
    • Replies: 7
    • Forum: Boilers
  20. J

    Vaillant Ecotec Plus 824 F75 fault

    Hello Our Vaillant boiler has developed a fault in the last 2 weeks. The hot water is working without any problems. However, within 15-20 minutes of turning the heating on we are getting the error message 'F.75 Fault. Pump water shortage'. The boiler being on for heating is pushing the filling...
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