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ecotec

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    New Boiler Stop/Start Loud Vibration - Valiant Ecotec Plus 615

    Hi all, Looking for some advice on a new Valiant Ecotec Plus 615 boiler, fitted a few weeks ago. It makes an on/off vibration shown in the video link below, and is loud enough for me to hear easily in the living room (I live in a 2 bedroom apartment and my boiler is in the bedroom). Our old...
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    Ecotec plus boiler with VR66 gives code s97

    I have mounted a VR66 wiring centre in dual zone (switch in position 0) with two VRT350 thermostats. The heater is an Vaillant Ecotec Plus with combiboiler from october 2020. And I must say it works very well when one or both thermostats ask for heat. When there is no demand for heat the boiler...
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    Valiant EcoTec plus 831 strange noise!

    Evening all, My EcoTec 831 has begun to make a strange noise, the plumber suggested bearings in the fan but it's intermittent and goes when rebooting. Can go a good week without it happening and HW and CH working fine. Any Ideas? Thanks in advance. Video is attached. Arron
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    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
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    Valiant ecotec 28 not working

    I’ve got a Honeywell st9100c and it fizzled and cut out yesterday no lcd screen working so changed it today and still no power in the boiler any suggestions please
  6. 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
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    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...
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    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...
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    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...
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    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. J

    URGENT How do I attach hose to EcoTEC pro for low water pressure?

    Hi, I’ve got an EcoTEC pro boiler which is showing code F22 and therefore not turning on. Last night I accidentally turned it off at the mains and only realised this morning; I’m not sure if this is simple coincidence? I’ve done it before without problems following. I have an external hose to...
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    Ecotec pro vs combipack4

    Can anyone see any reason this set up wouldn't work before I take a hammer to everything in sight 🤣 fitted quite a few of the stats but never work on vaillants. Only thing I can see in the book is to remove the 24v link? please help 😔
  13. 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+...
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    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...
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    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...
  16. 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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    Vaillant ecotec pressure dropping

    Hi folks, hopefully someone can help as this problem is doing my head in. Sorry for the long story but just want to fill in on what’s going on. Father in-laws boiler was dropping pressure with no sign of leaks on system. I checked expansion vessel and it had lost charge so must’ve been...
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    valiant EcoTEC radiator temp

    Thanks in advance. I have a valiant EcoTEC whilst the flow temp is set to 70 the heating flow only reaches a max of 45 when heating is demanded. (I can use chimney sweep mode to get to 70) but it means roads are never hot enough to warm house and boiler always on. does this seem right?? Any ideas
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    Valliant ecotec 637 no water sign on display and radiator flashing

    Hi. i have new installed valliant ecotec 637. The tap button is not showing on the display and the radiator is flashing on the screen. I can press the right button and change all the radiator settings but I am unable to access any of the tap settings as there is nothing on display. Please help!
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    Vaillant EcoTec Plus

    Hi Everyone. I am hoping that someone could help me with a problem I have with a Vaillant Eco Tec Plus, that was fitted last year in March. When it was first fitted I noticed that it took more than 30 minutes for our radiators, to get warm, our old boiler would heat it in about 10 minutes. I...

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