Bosch SMS series dishwasher E24

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  • August 12, 2016 at 8:31 am #89026
    grooster
    Participant

    Hi,

    I’ve been out to a couple of these newer BSH machines in the last few weeks with E24 faults. Now E24 or 25 is usually a drain pump fault I know. Plastic piece in the filter come away, pump blocked a little etc. I’ve checked everything and changed the pump but the problem still exists.
    I’ve put the fault down to a faulty PCB in the end but I was just wondering if there is something that i’ve been missing.
    Also do anybody know the fault codes for the machines with no display, just flashing lights.

    Any help would be appreciated.

    Thanks

    Nick

    August 12, 2016 at 5:33 pm #440097
    nomadPaul
    Participant

    Re: Bosch SMS series dishwasher E24

    E24 can also be a blocked or slow running heat pump . The non-return valve by the pump , if jammed slightly open (classic example was a cherry stem ) can also be the cause.

    August 13, 2016 at 12:36 pm #440098
    grooster
    Participant

    Re: Bosch SMS series dishwasher E24

    Thanks for the reply Paul,
    Is there any easy way of knowing if the heat pump is blocked without taking it out?

    August 13, 2016 at 5:03 pm #440099
    nomadPaul
    Participant

    Re: Bosch SMS series dishwasher E24

    When does the error code occur ? The start up procedure on one of these is normally as follows:

    Approx 30-45 secs draining
    Pause
    Heat pump fires up for approx 10-20 secs
    Pause
    2 sec burst of water to set flow rate
    Pause
    Fill.
    Maybe you can work out where in this sequence it fails ?

    August 15, 2016 at 5:43 pm #440100
    grooster
    Participant

    Re: Bosch SMS series dishwasher E24

    Sorry for the late reply.
    The two I’ve had in the last few weeks that I can remember, don’t get to the 2 seconds on water stage. They just continue to drain for about 2/3 mins then fault.
    I had one about a month ago that would work intermittently. I always knew once I heard the water go in for a few seconds that it would work. Then the next time it would drain again then fault.

    August 15, 2016 at 7:54 pm #440101
    timdowning
    Participant

    Re: Bosch SMS series dishwasher E24

    Just FYI, If you open & close the door 3 or 4 times in that first 60 seconds then this seems to trick the dishwasher past its initial checks…

    August 15, 2016 at 8:59 pm #440102
    grooster
    Participant

    Re: Bosch SMS series dishwasher E24

    I found that out by accident with one of them. When it has been draining for what seemed like too long, I opened the door a couple of times and it seemed to work again until the next drain and fill.

    August 16, 2016 at 6:12 am #440103
    Andy jones
    Participant

    Re: Bosch SMS series dishwasher E24

    If it only does it during drain and doesn’t go on to fill/heat pump then I’d be looking closely at pump. Possibly drawing too much current

    August 16, 2016 at 6:27 am #440104
    grooster
    Participant

    Re: Bosch SMS series dishwasher E24

    I always swap the pump as routine first and its always a brand new one. Always have a couple on the van.
    Thanks for your help

    August 16, 2016 at 7:43 am #440105
    Andy jones
    Participant

    Re: Bosch SMS series dishwasher E24

    Sorry mid-read didn’t see you changed pump, I know others have changed door lock which cured similar problems
    May be worth a try

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