LD-12AW2 Overfilling

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  • November 28, 2007 at 12:36 pm #32573
    beeno
    Participant

    Looking for some advice regarding my LG LD-12AW2 dishwasher that has recently began to overfill 2 in 3 washes.

    No error messages are displayed and it happily carries on dribbling water out the front util it drops below the door level.

    Have done a search of the forums and have come across the opposite prob (no fill) heaps. Also found the link to the LD-14AW2 service manual.

    I reckon it has to have something to do with the water level sensor as it doesn’t do it every time i’m suspecting that something has got stuck in the sensor.

    Questions are:
    How similar in electronics/controls is the 14AW2 to the 12AW2?

    Anyone know where the water level sensor is in these suckers?

    Anyone got any tips for a fix?

    Any info or tips would be appreciated as i hate to re-invent the wheel and pulling stuff apart for the hell of it just get the wife cranky. (She hates it when i lay bits systematically out all over the kitchen floor!)

    Cheers
    Beeno

    November 29, 2007 at 2:31 am #235658
    bigsmokepiker
    Moderator

    Re: LD-12AW2 Overfilling

    Possible Causes
    Pressure Switch Located At front Bottom Panel
    Water inlet Valve (Located At Back Where Inlet Hose Screws Onto)May Not be Closing Properly Due faulty Valve or FAulty PCB
    PCB is different to LD14AW2

    There was a recall on this Model For Faulty PCBs
    Ring LG service 1800643156

    November 29, 2007 at 2:45 am #235659
    beeno
    Participant

    Re: LD-12AW2 Overfilling

    Thanks bigsmokepiker.

    Took the plunge and came up with the following:

    Chamber where the pressure switch pipe fits onto was full of crud. Along with most of the rest of the little crevices scattered throughout the machine. Disassembled, cleaned and reassembled.

    Checked the solenoid. Closes correctly, so i can only assume that with the crud in the system the pressure switch was not activating correctly.

    Fitting where the top sprayer connects to the water guide had a crack in it. This allowed water to seep past the o ring and nut and into the sound deadening mat. The mat was damp and moisture had run down the side of the cabinet into the bottom tray. Now just have to get the part! easier said than done. $3 for the part, $14 to send it to me from ADL. trying to source one closer.

    The PCB has been replaced under the recall.

    Cheers
    Beeno

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