CDA 494 Seven flashes…..

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  • January 12, 2009 at 4:15 pm #42512
    RichB
    Participant

    Aaaaaargh!

    Long story involving engineers deciding that the heater wasn’t working, and subsequent engineer blaming use of powder rather than tablets, but, intermittent fault remains and refuses to fill cempletely at all.

    Having found your very helpful forums, I’ve done all the recommended checks:
    No kinks or blockages; Water supply OK; cleaned pbc contacts (though they seemed OK) and pinched connector to fill matrix.

    Water can be seen flowing into the chamber, and the flow wheel is spinning, but the machine still decides it has a problem.

    I’ve come to the conclusion that I need to get a new fill matrix.

    I assume that the little PCB is the reed switch – does the new matrix come with a PCB?

    Is it possible to get just the PCB and is this worth trying first?

    Does the matrix does pull up and out from the side of the machine? I had a tentative pull when the machine was last open, but it seemed fairly securely attached.

    Thanks.

    Richard

    January 13, 2009 at 12:08 am #273743
    Penguin45
    Participant

    Re: CDA 494 Seven flashes…..

    The issue is normally oxidisation of the contacts on the reed switch pcb and its connector. The reed switch can fail. The pcb is only available as part of the fill matrix – unless you wish to investigate reed switches from the likes of Radio Spares or Maplins. Complete assembly is HERE.

    To remove it, you have to undo the locking ring on the inlet vent on the inside of the machine first.

    Power off beforehand, though.

    Penguin45.

    January 13, 2009 at 5:45 pm #273744
    RichB
    Participant

    That’s brilliant, thanks. All contacts are clean, so I’ll get a new fill matrix.

    Thanks again for your assistance,

    Richard

    January 17, 2009 at 9:04 pm #273745
    RichB
    Participant

    Thanks again Penguin, I fitted the part this morning, and the machine is happily washing its 2nd load of the day.

    Cheers,

    Richard

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