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Got F28 fault on vaillant turbo max boiler, when i turn the pressure up it drops straight back down to 0, can hear water running out somewhere, is it a leak do you think on one of the radiators or pipes under floor?

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Posted on Jan 02, 2017

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  • 7 Answers

SOURCE: boiler loosing pressur

generally preesure problems are caused by the following- obviously a leak, bleeding of rads without topping up the pressure, pressure relief valve passing( probably an integral part to the boiler), or potentially a problem with the expansion vesell.
the expansion vessel is a tank which
holds water and air- it should be pressurised with air by about 10 psi or up to 1bar, if the diaphragm has split this ill cause pressure problems all day long

hope this info helps

Posted on Sep 18, 2008

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  • 1 Answer

SOURCE: my vaillant boiler is displaying

Have you topped the system up with water? The pressure gauge should be showing an operating pressure of 1.5 Bar in the green section.

Posted on Jan 13, 2009

  • 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

  • 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

gasman44
  • 83 Answers

SOURCE: I have a Vaillant boiler Turbo Max VUW 242/1E,

Hi,

You have a faulty diverter valve, this is a fiddly job, you need to call in a 'Gas Safe' engineer to diagnose and replace this

I hope this helps

Steve

Posted on Jul 10, 2009

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1 Answer

Manual for Vaillant turbo Max combination boiler


No model listed, but this manual covers 8 of the most popular models.

Boiler Instruction Manual

May 04, 2014 | Computers & Internet

1 Answer

My combination boiler vaillant turbo max is not building up presure what can I do ?


Check the warning pipe to see if water is coming out. If it is then the pressure relief valve is passing and will require cleaning\replacing. If the water in the system is dirty then the capillary tube to the pressure gauge may be blocked this normally means changing the gauge. If neither of those are satisfactory then you may have a leak on the heating system or heat exchanger.
If the pressure is going up but dropping off when the boiler cools down this indicates the expansion vessel diaphragm needs recharging or replacing

May 04, 2014 | Computers & Internet

1 Answer

Code f28 what isit?


According to the user's guide, the fault code means that the boiler failed to start after 5 attempts. Here is the manual where I got the information. I would confirm the codes with your particular model. I am presuming that the codes would be standard for all their models. Source(s): http://www.vaillant.co.uk/stepone2/data/…

Mar 10, 2010 | Water Heaters

2 Answers

Hi my vaillant eco tec pro shut down last night showing fault f.28 and will not ignite today 08/01/2010 looked out side to see the condenser pipe was frozen i defrosted the pipe but boiler still wont...


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!

Jan 08, 2010 | KDS Valiant 6380iPTD-01 Notebook

3 Answers

I have a Vaillant boiler Turbo Max VUW 242/1E, central heating is working but no hot water


Hi,

You have a faulty diverter valve, this is a fiddly job, you need to call in a 'Gas Safe' engineer to diagnose and replace this

I hope this helps

Steve

Jun 27, 2009 | KDS Valiant 6380iPTD-01 Notebook

1 Answer

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.

Mar 25, 2009 | Water Heaters

2 Answers

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.

Feb 01, 2009 | KDS Valiant 6380iPTD-01 Notebook

6 Answers

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.

Nov 14, 2008 | KDS Valiant 6380iPTD-01 Notebook

3 Answers

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.

Apr 04, 2008 | KDS Valiant 6380iPTD-01 Notebook

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