Question about KDS Valiant 6380iPTD-01 Notebook

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Vaillant eco tec pro 28

My boiler is showing fault f.28 and will not ingite

please help

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  • r_smith Nov 14, 2008

    its a vaillant condensing gas boiler, it is showing problem with ignition, it won't fire up

  • superdoodie May 22, 2009

    ive had my gas meter changed from quaterly to card meter. now my boiler is showing a red light and has a error code f.28

  • Lee Hodgson
    Lee Hodgson May 11, 2010

    boiler? what do you mean?



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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

  • nick-geek Dec 22, 2010

    This happened to me, in the end I cut the condensate pipe outside to release the water, all now working, just need to fit a joint on the pipe!


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Ignition fault,
you either have no gas or there is a problem with the electrode or gas valve probably

Posted on Dec 13, 2008

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Could be a gas supply problem, as F28 is an ignition failure. Common due to the restrictive 15mm gas isolation valve, which actualy reduces down to 8mm inside. Get Transco to check the gas coming into the property

Posted on Mar 03, 2009

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Don't try messing with gas appliances, you need to get a registered gas engineer to come and have a look because it sounds like the coil has gone so the ignition won't work, please don't mess with it yourself because of the safety issues involed

be safe!!!

Posted on Nov 14, 2008

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Its either no gas pressure, or its an expensive repair.
If you can get it done on insurance do that.
If not get a new boiler, your problems are only starting with with eco tech or any vaillant.

Posted on Feb 03, 2010

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This fault appeared a few times when I ran out of gas, then when you top up, you may have to open the gas supply a few times before it kicks in again. Usually there is an audible pop, when your gas flows again.

Posted on Jun 04, 2012

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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...

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

1 Answer

Hi i get fault 28 on my vaillant boiler

F-28 is a common error for my vaillant. I have had this problem serviced at least 10 times (all under warranty). It is an ignition problem and can be connected to a number of things. I have had the starter electrodes cleaned only to later have them replaced(4 times). I just had the "panel" replaced yesterday (looks like a motherboard or electronics panel). This is the second time to have this replaced. All of these things can give you an F-28 error message. I have an atmotech pro and have had ongoing F-28 issues for two years. They are looking at venting/air issues as well to see if this is the problem. douglas

Dec 20, 2009 | KDS Valiant 6380iPTD-01 Notebook

1 Answer

Its a vaillant condensing gas boiler, it is showing problem with ignition, it won't fire up. fault code 28

air in gas
gas rate low
could be gas valve faulty,ignition transformer,ignition cable.
if there is a spark then its your gas valve,if no spark then check continuity on harness and spark generator,also check earth to appliance

Oct 19, 2009 | KDS Valiant 6380iPTD-01 Notebook

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