Question about KDS Valiant 6380iPTD-01 Notebook

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F22 on my vaillant boiler turbo max

Pls can you tell me what f22 means on my boiler

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  • ANOINTEDUK Mar 01, 2009

    f22 is flashing on my boiler too, no hot water....HELP!!

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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

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Above isn't the cause, this seems to be a never ending problem with vaillant boilers, I've had Vaillant engineer out and he's changed just about every part on the boiler. Water pressure is where it should be and still, up comes F22. The only way this can be repaired is by replacing the PCB printed circuit board, this does work, but because it's expensive it is the last resort for a contract repairman.

Posted on May 31, 2009

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