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Samsung Q1044 hits max rpm when plugged in and never stops

Samsung Q1044 hits max rpm when plugged in and never stops

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Thread: Samsung Q1044 hits max rpm when plugged in and never stops

  1. #1
    Join Date
    Dec 2013
    Posts
    4

    Default Samsung Q1044 hits max rpm when plugged in and never stops

    Hello to all, this has been a bit of a desperation for me, trying to fix this washing machine.

    First of all, I have been searching for help on other webplaces but so far none has provided with any help so I am trying it here now hoping that maybe this time something new can be discovered or even fixed.

    My washing machine is a Samsung Q1044 and one day it simply started hitting max RPM for no reason, just plug it into the wall and there it goes. Pressing any of the buttons has no effect. It won't sping if the door is open but it does as soon as it closes. The display shows only hyphens, no codes.

    The following is a video showing what happens when it is plugged into the wall until I unplug it, for a better understanding:

    https://skydrive.live.com/redir?resi...t=video%2C.mp4

    This is what it was doing before and after I sent the pcb tracks to be repaired, I suspected that a ****roach caused a short circuit and the following is a picture showing the blown tracks before the repair:

    http://i.imgur.com/RolEdYX.jpg

    The 3 solder triangle there is a M10LZ47 5-J (or 5-i, not sure now) which is screwed to the heatsink, as show in the following picture:

    http://i.imgur.com/gETfuKX.jpg

    Even after the pcb tracks have been repaired the machine sitll displays the same result as seen on the video and I can't find any replacement for it so I am still trying to find out what is still causing this problem and I have come up with a few possibilities, however I do not have any way to test them (no multimeter or even knowledge):

    - Busted power relay :: Although it didn't display any sign of fault, as far as I could see

    - EEPROM or CHIP problem :: Maybe the program got wiped out with the short circuit and is now runing in "dumb" mode

    - Busted M10LZ47 5-J :: Think it's also called transistor or triac, this one also didn't display any sign of damage

    - Bad display :: Although it does work I do not know wether it is working normally or not

    So this is where I am stuck now and for someone like me with little to no electronics know-how, it feels like the power is going directly to the motor without stopping. I can post more details or more pictures of the PCB if anyone requests.

    Hope someone here can lend a hand and figure out what might be going on because I have exausted all my google fu searching for a replacement and even someone with the same problem and nothing was to be found.

    This was a very expensive machine and there's no money to spend on a new one so if it can be fixed it would be really great.

  2. #2
    Join Date
    Feb 2012
    Location
    Canada
    Posts
    2,331

  3. #3
    Join Date
    Dec 2013
    Posts
    4

    Default

    Hi, jeff, this is a multi-national model. The same (Qxx44 with xx being the first 2 digits of the RPM) was made for quite a few countries, these are the few that I have found (Country denomination at the end of the complete model name):

    /XEP - Portugal/Ibera
    /XEG - Germany
    /XEC - Czechoslovakia
    /XER - Russia

    Problem is, like I said in the first post, the module is exausted, I can't find it being sold anywhere so I am stuck with finding the problem with the board.

  4. #4
    Join Date
    Feb 2012
    Location
    Canada
    Posts
    2,331

    Default

    I doubt they have much/any info on a non-north american appliance.....but some places that rebuild electronics.....
    http://www.applianceaid.com/appliance-timer-repair.php

    Maybe someone local rebuilds control boards?

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid

  5. #5
    Join Date
    Dec 2013
    Posts
    4

    Default

    Well, it won't hurt trying, sent them an email.

    Local rebuilder repaired the tracks, might try asking them if they assist at home so he can see better what the problem might be with the module assembled in the machine.

  6. #6
    Join Date
    Dec 2013
    Posts
    4

    Default

    Just wanted to leave an update, I replace the PCB with another from a completely different model that had AG+.

    I thought it wouldn't work at first because I didn't have the Silver Nano extra pcb and for my surprise it did work so if anyone is having the same problems of finding a replacement for their model then find one that is the equivalent of yours and it will work.
    I don't know if the same is possible with the dryer versions so only try with those if you have absolutely no other choice.

    My washing machine is a Q1044, portugal model - original PCB model is MFS-Q1044-00 - and the PCB that I used for replacement is from the Polish (or russian, I am not quite sure now) model F1245AV - PCB model MFS-1245A-00.

    All connections fit perfectly and everything works well, except for the Silver Nano technology which I wouldn't want either way.

  7. #7
    Join Date
    Feb 2012
    Location
    Canada
    Posts
    2,331

    Default

    Thankx for the update.

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid

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