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Jehan Vaillant (fl. 1360–1390; also spelled Johannes Vayllant) was a French music composer and theorist. He is named immediately after Guillaume de Machaut by the Règles de la seconde rhétorique, which describes him as a "master … who had a school of music in Paris". Besides five (possibly six) pieces of music surviving to his name, he was also the author of a treatise on tuning. With Grimace and F. Andrieu, Vaillant was part of the post-Machaut generation whose music shows few distinctly ars subtilior features, leading scholars to recognize Vaillant's work as closer to the ars nova style of Machaut.

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  1. 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...
  2. 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...
  3. 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...
  4. 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.
  5. 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...
  6. I

    Water Softener advice now I've moved to combi boiler

    Hi, We have a Kinetico 2020c HE Water Softener, fitted in 2008 in our loft to the cold water tank in a vented system with a conventional boiler. All good, was working fine. Recently our old Potterton Suprima conventional boiler packed up and we decided to change to a Vaillant EcoTec COMBI...
  7. 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...
  8. 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...
  9. 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
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. B

    Vaillant TURBOMax Plus 828E - Partial Load Setting d.00 problems

    Hi, I have a TURBOMax Plus 828E in a small Annex that only has 3 Rads. The boiler Cycles but is only ignited for about 30-40 seconds before reaching target Temp and then goes on pump overrun. Given that there are only 3 Rads and are 'designer' with a total combined KW spec of about 2.5kw, the...
  15. J

    Boiler swap Arnold Nottingham

    require my ng heat only 28kw floor standing glow-worm back flue boiler still working (25 years old) replacing with a suitable back flue ng heat only boiler, Location Arnold, Nottingham
  16. P

    Hi all, how to convert to lpg the vaillant ecotec plus 618-2018

    Hi all, how to convert to lpg the vaillant ecotec plus 618-2018
  17. R

    Installing a new pump for Vaillant ecoTEC Plus 400 15kW. West London

    Removing pump and installing a new pump for Vaillant ecoTEC Plus 400 15kW Heat Only Boiler. Connecting the pump to the boiler and completing all wiring for the thermostat and consumer heating controller.
  18. R

    What is ideal pump size for Vaillant ecoTEC Plus15kW Heat Only Boiler?

    What is the ideal pump size for Vaillant ecoTEC Plus 400 15kW Heat Only Boiler? The property is a studio with 1 large room, a small kitchen and a small bathroom. I've been advised to use Grundfos UPS3 15-50/65-130.
  19. R

    Vaillant ecoFIT 415 heat only boiler. Connecting the pump and boiler?

    Vaillant ecoFIT 415 open vent heat only boiler. For wiring the boiler and pump, should I use the 3-way wire switch" solution OR a "remote switching" solution? The pump and copper tank are situated about 25ft from the boiler. I've been told that the 3-way cable solution doesn't work well with...
  20. F

    URGENT Vaillant boiler pressure drops only when hot water is on

    Vaillant ecotec boiler loses pressure when hot water is on and does not work. But heating is working fine with normal pressure . Help plz
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