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Pilot light dosent fire up but shows a red light in window its a vaillant ecopro combi boiler

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 17 Answers

SOURCE: Vaillant combi boiler thermostat is in red how do i fix it

sounds like the small heat exchanger that heats water is blocked would advise removeal and cleaning with mild acid mixture taking all the necesssary precautions of course

Posted on Nov 27, 2008

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  • 30 Answers

SOURCE: I can't turn the bar pressure up on my Vaillant VCW 221 Boiler

on the pipework below there may be a silver braided hose with one or two valves on the end. turn the valve(s) so the handle is inline with the pipe this will allow water from the mains supply into the heating circuit , remember to keep an eye on the pressure gauge. fill the system to 1bar cold then shut down the valve(s). turn on the boiler and it should be ok, if you lose pressure again then you may have a leak somewhere which needs to be found.

Posted on Mar 30, 2009

  • 30 Answers

SOURCE: vaillant 831 combi boiler timer help

check to see the time clock is set with the clock symbol. there are three settings on analog clocks I , O and clock the I setting is constant running, the O setting is off and the clock setting is timer.
also try setting the thermostat up higher to see if the boiler fires.

Posted on Mar 30, 2009

gary1121
  • 332 Answers

SOURCE: I have a Sime Super 90 Combi Boiler. How do I

does it have a little red button on the right hand side of the gas valve? if so you must put the gas valve button in the pilot positon and push it down and hold it, then click the red button {push it down} it will click and look at it keep clicking while holding down the button on the gas valve eventually when the gas gets thru it will light could take several clicks of the ignitor

Posted on Jun 21, 2009

gasman44
  • 83 Answers

SOURCE: vaillant combi boiler,dirty water comes out of hot

Hi ,

Can you please tell me the model of the vaillant, and the approx age?

I can solve this problem

I await your reply

Thanks

Steve :)

Posted on Jul 16, 2009

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Hi ,

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I can solve this problem

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Thanks

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sounds like the small heat exchanger that heats water is blocked would advise removeal and cleaning with mild acid mixture taking all the necesssary precautions of course

Nov 20, 2008 | Water Heaters

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