Dishwasher - Leaves a Residue on Dishes when Finished

Discussion in 'UK Home Improvement' started by Nigel Heather, Feb 1, 2009.

  1. A few months ago I had a new kitchen fitted and this included a new
    dishwasher (Neff S5555).

    The dishwasher is in exactly the same location using the same water\waste
    connections as the previous dishwasher which did a great job for 13 years.

    I first noticed the problem with cups and glasses. As my nose not close to
    the rim when drinking I could detect an unpleasant stale smell.

    I tried a few 'clean' cups and glasses and many were the same. I checked
    that my family could detect the smell and they all could.

    I have tried various brands of dishwasher powder (all in the cube form) and
    the results are the same. I've also checked that rinse aid is kept topped
    up.

    I have taken to rinse the cups and glasses before use and they are fine
    after a swig of fresh water. I have noticed that there appears to be a
    dried residue as I wash them.

    More recently, when I have taken glasses out of the washer still warm and
    wet I've notices that they are coated with a slimey rsidue which I guess is
    the siurce of the smell once it has dried.

    Any ideas what this could be or what I could try?

    Never had any problem with the previous washer.

    Cheers,

    Nigel
    Nigel Heather, Feb 1, 2009
    #1
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  2. Nigel Heather

    AJH Guest

    On 1 Feb, 13:08, "Nigel Heather" <nigel@<NO_SPAM>the-heathers.co.uk>
    wrote:
    > A few months ago I had a new kitchen fitted and this included a new
    > dishwasher (Neff S5555).
    >
    > The dishwasher is in exactly the same location using the same water\waste
    > connections as the previous dishwasher which did a great job for 13 years..
    >
    > I first noticed the problem with cups and glasses.  As my nose not close to
    > the rim when drinking I could detect an unpleasant stale smell.
    >
    > I tried a few 'clean' cups and glasses and many were the same.  I checked
    > that my family could detect the smell and they all could.
    >
    > I have tried various brands of dishwasher powder (all in the cube form) and
    > the results are the same. I've also checked that rinse aid is kept topped
    > up.
    >
    > I have taken to rinse the cups and glasses before use and they are fine
    > after a swig of fresh water.  I have noticed that there appears to be a
    > dried residue as I wash them.
    >
    > More recently, when I have taken glasses out of the washer still warm and
    > wet I've notices that they are coated with a slimey rsidue which I guess is
    > the siurce of the smell once it has dried.
    >
    > Any ideas what this could be or what I could try?
    >
    > Never had any problem with the previous washer.
    >
    > Cheers,
    >
    > Nigel


    At a guess I would say that the problem could be linked to the waste
    outlet. Quite often the waste pipes get semi blocked with sludge type
    residue particularly with smaller diameter pipework. When that happens
    the machine can't get rid of all the dirty water and the final rinse
    water gets contaminated. Try cleaning all of the waste pipes,
    sometimes cleaning additives can work but the most effective way is to
    remove pipes and flush them out.
    AJH, Feb 1, 2009
    #2
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  3. Okay, will give that a go.

    My problem is that the dishwasher is an integrated type so will be quite a
    bit of work to get at the pipe.

    Will try a hot wash next time.

    Cheers,

    Nigel
    Nigel Heather, Feb 2, 2009
    #3
  4. "Nigel Heather the-heathers.co.uk>" <nigel@<NO_SPAM> wrote in message
    news:014c09d1$0$31992$...
    > Okay, will give that a go.
    >
    > My problem is that the dishwasher is an integrated type so will be quite a
    > bit of work to get at the pipe.
    >
    > Will try a hot wash next time.
    >

    I wouldn't have thought it was a blockage. If the water can't empty
    properly, the programme will stick at that point, it should not carry on
    through the rinses with the same water. The rinse aid is taken on the final
    rinse, so this is the most likely suspect, I would try removing the old
    stuff as much as possible with something like a syringe, then try a
    different rinse aid.
    Harry Stottle, Feb 2, 2009
    #4
  5. Nigel Heather

    AJH Guest

    It might be worth checking with Neff, sometimes the technical
    helplines can be helpful (not always!) A built in unit shouldn't
    really be a big deal to slide out to get to the drain pipework. Some
    dishwashers connect to the kitchen sink waste pipe and because of the
    small diameters involved the junction can block fairly easily. Look
    under your sink to see if there is a connection there which can be
    unscrewed and cleaned. Also try posting on an appliance repair forum
    for help as well, this site is a source of good info www.repairclinic.com
    although it's a USA one.
    AJH, Feb 3, 2009
    #5
  6. Nigel Heather

    AJH Guest

    please post through the forum not direct!
    AJH, Feb 3, 2009
    #6
  7. Sorry, thought I had. I had absolutely no intention of posting anywhere
    other than the newsgroup.

    This is what I posted

    What puzzles me is how could the waste be blocked but the dishwasher appear
    to drain without any problem.

    Surely it wouldn't be able to get rid of the water?

    Cheers,

    Nigel
    Nigel Heather, Feb 4, 2009
    #7
  8. "Nigel Heather the-heathers.co.uk>" <nigel@<NO_SPAM> wrote in message
    news:014ef8fd$0$32022$...
    > Sorry, thought I had. I had absolutely no intention of posting anywhere
    > other than the newsgroup.
    >
    > This is what I posted
    >
    > What puzzles me is how could the waste be blocked but the dishwasher
    > appear
    > to drain without any problem.
    >
    > Surely it wouldn't be able to get rid of the water?
    >

    That's true, hence my earlier post, repeated below in case you missed it.

    "I wouldn't have thought it was a blockage. If the water can't empty
    properly, the programme will stick at that point, it should not carry on
    through the rinses with the same water. The rinse aid is taken on the final
    rinse, so this is the most likely suspect, I would try removing the old
    stuff as much as possible with something like a syringe, then try a
    different rinse aid."
    Harry Stottle, Feb 4, 2009
    #8
  9. Nigel Heather

    AJH Guest

    no probs,
    As I replied I would pull the machine and clean any drain tubing
    that's accessible, if the pipework has been in place for 13years then
    logic suggests that a cleaning session would be advisable.
    AJH, Feb 5, 2009
    #9
  10. Nigel Heather

    Slider Guest

    "Nigel Heather the-heathers.co.uk>" <nigel@<NO_SPAM> wrote in message
    news:00717be9$0$498$...
    >A few months ago I had a new kitchen fitted and this included a new
    >dishwasher (Neff S5555).
    >
    > The dishwasher is in exactly the same location using the same water\waste
    > connections as the previous dishwasher which did a great job for 13 years.
    >
    > I first noticed the problem with cups and glasses. As my nose not close
    > to the rim when drinking I could detect an unpleasant stale smell.
    >
    > I tried a few 'clean' cups and glasses and many were the same. I checked
    > that my family could detect the smell and they all could.
    >
    > I have tried various brands of dishwasher powder (all in the cube form)
    > and the results are the same. I've also checked that rinse aid is kept
    > topped up.
    >
    > I have taken to rinse the cups and glasses before use and they are fine
    > after a swig of fresh water. I have noticed that there appears to be a
    > dried residue as I wash them.
    >
    > More recently, when I have taken glasses out of the washer still warm and
    > wet I've notices that they are coated with a slimey rsidue which I guess
    > is the siurce of the smell once it has dried.
    >
    > Any ideas what this could be or what I could try?
    >
    > Never had any problem with the previous washer.
    >
    > Cheers,
    >
    > Nigel
    >


    Isn't this just too much rinse aid when the contents are cloudy after
    washing? Try reducing the rinse aid dispenser.
    Slider, Feb 5, 2009
    #10
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