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vaillant

Recent contents Top users
  1. MilkyBadger

    Seeking Engineer for Vaillant EcoTec 832 Boiler Issue - SE London

    Hello, I am looking for a heating engineer to diagnose and resolve an issue with my Vaillant EcoTec 832 combi boiler. Job Location: Copeland Rd, London. Job Description: Problem: The boiler is not providing heating under normal conditions, although hot water supply is fine. Interestingly...
    • MilkyBadger
    • Thread
    • boiler ecotec engineer london vaillant
    • Replies: 1
    • Forum: Boilers
  2. MilkyBadger

    Why Does Vaillant EcoTec 832 Boiler Only Heat in Chimney Sweep Mode?

    Hello everyone, I'm facing an issue with my Vaillant EcoTec 832 boiler and would greatly appreciate your expert advice. The Problem: Heating Not Working Normally. When I turn on the heating, it doesn’t start. However, I still receive hot water, suggesting the boiler does work in some...
  3. A

    Difference between VRT 380f and VRT 380f/2 Vaillant controllers?

    A Google search suggests that the VRT 380f/2 variant is sold and used mainly in Scandinavian countries, but is there a functional difference which would prevent the VRT 380f/2 being used in the UK?
  4. N

    Hive Heating & Hotwater install to Vaillant Thermocompact VU GB 242/1

    Hi, I am trying to link a Hive heating & hot water dual channel receiver to an old Vaillant THERMOcompact VU GB 242/1 E system boiler. It has an internal programmer that is similar to a time switch 120 (plug in seven day programmer) This programmer is connect to a terminal strip using 345 (three...
  5. K

    Vaillant ecofit pure hot water cuts out

    I have a Vaillant ecofit pure, we had it installed about 6 years ago so it's not an old boiler, a new pump was also fitted at the same time. Anyway, I have the hot water set to come on the morning but the last couple of days I've noticed after around 10mins it's cuts out, then after s couple of...
  6. T

    Vaillant Ecotec 824 R1 - random noise when heating ON

    Hi I'm dealing with Vaillant Ecotec 824 R1 in one flat. The boiler make a very loud noise when central heating is on - this is random and occurs mostly at night. I'm sharing video showing the problem: So far we changed: 1. Expansion vessel 2. Pump 3. Water pressure gauge - analogue sensor...
  7. W

    Are Vaillant controls worth the investment?

    I am considering replacing my existing boiler with the new 2023 Vaillant ecotec plus 625 boiler. I currently have 3 x Heatmiser neoStat thermostats that are all hard wired back to the wiring centre; one for the central heating, one for a room with UFH, and one for the HW. I use the Heatmiser...
  8. S

    Vaillant "Service Heat Generator" Message

    I have a Vaillant Ecotec Plus combi boiler that was installed just over 6 years ago. It has been serviced annually, the most recent service being about 2 months ago. The controller is a Vaillant VRT 350f wireless type. Recently a spanner symbol and a “Service Heat Generator” message have...
  9. X

    Vaillant VRT 392 Thermostat (wired) not working

    Hello, my Vaillant VRT 392 Thermostat just stopped working, it's completely dead, I read another thread suggesting changing batteries, but this model does not use batteries, it's wired to a Vaillant control center VR65 with eBUS, my boiler is Vaillant ecoTEC plus 624, anyone can help identify...
  10. R

    Vaillant Sensohome and fault codes.

    Hello All I have an ecotec 630 with Sensohome controls. Should the fault codes shown in the boiler also be reflected in Sensohome control? All appears to be working ok but the Sensohome has a fault code relating to the outside sensor (F521) which I can't seem to clear. The sensor is working ok...
  11. J

    Wanted vaillant ecomax 18e flue collector cardboard template

    Hi can anyone help. Flue collector on vaillant ecomax 18e needs refitting but no longer have the cardboard template included in the kit. Does anyone have one? Full kit is 076560.
  12. C

    Vaillant boiler 2a fuse trip

    Hi all We have a Vaillant turbomax plus 828e combi which we found powered off a few days ago. Turns out the 2a glass fuse on the PCB had gone. Replaced and it turns back on but as soon as you start the hot water or heating, it pops again within a few seconds I have looked as the pump and can...
    • chatlow
    • Thread
    • boiler vaillant
    • Replies: 1
    • Forum: Boilers
  13. J

    Vaillant boiler vibrating cold start

    Vaillant ecomax 18e boiler noise at cold start. Replaced heat exchanger with reconditioned unit and new flue collector as kettling was getting problematic. Works fine except vibrating for around 10 seconds on cold start. Didn't do it before. Any ideas?
    • jonnyp
    • Thread
    • boiler cold vaillant
    • Replies: 17
    • Forum: Boilers
  14. R

    Vaillant Controls VRC470F

    I have a Vaillant Ecotec plus 630 and a VRC 470F Controller. The controller has a radio receiver in the boiler facia. Now I have a Sensohome controller to install with internet gateway. The radio receiver for this must be wall mounted and ebus connected. The question is, how to I remove or...
  15. D

    Vaillant Turbomax F29 - What's the next step?

    I have a Vaillant Turbomax with an F29 fault. When there is a demand for hot water the gas ignites initially, and the water is heated. However the gas then goes out and then comes back on (not sure if this is usual to control the water temp), it does this a few times but then the boiler fails to...
  16. McDoosh

    Vaillant EcoTec - 10mm pipework to radiators?

    Hi, just about to bite the bulklet on a new boiler and radiators, Vaillant EcoTec Plus 32kW. Is 10mm pipework to the radiators sufficient? Thanks
  17. Z

    Boiler Pressure Keeps increasing - Vaillant Ecotec Plus 838

    Hello everyone, I have a Vaillant Ecotec Plus 838. The issue i have is after the heating is switched on and then left it to cool over night i see the pressure has gone up. For example yesterday it was set at 1.3 heating was switched on and when it reached its temp it went upto 1.9 so no issues...
    • Zishan
    • Thread
    • boiler ecotec plus pressure vaillant
    • Replies: 19
    • Forum: Boilers
  18. K

    Vaillant ecoMax 828/2E (VUW GB 286/2-C)

    Hi I wonder if can someone offer any solution... I have a Vaillant ecoMax 828/ 2E boiler which is leaking. To start the repair do I need to adjust the diverter valve to the middle position to purge the boiler? If so what function on the program do I need to go to adjust the diverter valve to...
  19. I

    Help with New Vaillant Boiler not staying on

    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 filter, new pump, plus new Hive. Did full power flush of all 5 radiators before the installation. It has been 10days and boiler stil not working...
    • Irina Pri
    • Thread
    • boiler vaillant
    • Replies: 53
    • Forum: Boilers
  20. R

    How do I stop Air being sucked into pump of Vaillant heat only boiler?

    Vaillant ecoTEC Plus 400 15kW Heat Only Boiler I've got air in the pump and one gas engineer has said I need to move the pipes as they are configured incorrectly. Another said all I need to do is add an AAV as high as possible. Another said I should seal the system. Boiler was installed in...
    • raidac
    • Thread
    • boiler heat pump vaillant
    • Replies: 9
    • Forum: Boilers
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