Question about KDS Valiant 6380iPTD-01 Notebook

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I have a Vaillant Thermocompact VU182 E boiler. Functioning ok except that when room stat. or cylinder stat.shuts of gas the demand light continues to glow and pump keeps on running. Main switchboard has been replaced. Is the fault in the control board and will replacing it solve the problem?

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Pump should keep running long after gas shuts off, because of residual heat. It is most efficient to shut gas off as quickly as possible, and run off retained heat.

Posted on Oct 13, 2013

Testimonial: "Hello Kirk. Many thanks for your reply. Unfortunately, the pump will run for many hours eventually pushing cold water round the rads. before the boiler re ignites. Peter"

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Posted on Jan 02, 2017

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SOURCE: vaillant Boiler time switch no user manual

http://www.vaillant.co.uk/stepone2/data/downloads/9a/42/00/timeSWITCH_120.pdf

Posted on Dec 26, 2007

  • 2 Answers

SOURCE: re-pressure Vaillant Turbomax Plus boiler

two pipes coming into boiler on right hand side have brass block valves with a small round recess. These two valves are linked with a stainless fill hose.

Inside the recess on each valve is a small slot, there is a "key" with the boiler but prob lost with the manual. The advantage of the key is its sized so you wont be poking it in the wrong place!

Using a screwdriver turn both slots throug 90 degrees, you will hear water running through. Sometimes one valve is left open so try a combination until the watert runs.

Keep an eye on the pressure gauge and dont let it get too high, if you have no idea of setting pressure head for about 1bar.

Posted on Nov 23, 2008

  • 1 Answer

SOURCE: f22 on my vaillant boiler turbo max

Hi Guy's,
The answer is that your system is out of water pressure.
Usually there is a nob on the right under the base of the unit near to the small dial to the right of the front cover.
To enable the system to work correctly the needle on this dial should be in the Grey, about midway position.
Currently with fault F22 this will be lower to below the Grey and on the needle.
To bring the pressure back to the correct position, you need to turn this nob until you hear the water entering the system, KEEP AN EYE ON THE DIAL AND TURN THE WATER OFF AGAIN WITH THIS NOB ONCE THE DIAL IS IN THE CORRECT GREY POSITION AS MENTIONED ABOVE. DO NOT OVER FILL THE SYSTEM. I suggest you check this every six months or so.
Once this is corrected your unit will light up again.
Best of luck. Mike. N.

Posted on May 22, 2009

  • 1 Answer

SOURCE: hi my vaillant eco tec pro shut down last night

Got exactly the same problem with mine. Manual says f28 = fault in gas supply, gas pressure too low. Boiler will ignite but goes out within minutes? HELP!

Posted on Jan 08, 2010

  • 104 Answers

SOURCE: vaillant eco tec pro 28

IF the weather is extremely cold, and you're getting F28, the external pipework may be blocked with ice. Warm up the external pipes (lag them if you can) - and now see if your boiler will re-ignite.

A friend fixed our condenser boiler with this tip - hope it helps you.

Posted on Jan 09, 2010

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