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AEG dryer T59880 Error E50 The induction motor does not start.

electrogt 8643 11
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16207671
    electrogt
    Level 10  
    Good evening,

    As in the topic, the problem with the engine control board. Board number ELEW011.
    The dryer came to me with the above-mentioned symptom, after the review of the board, I noticed a damaged R118 resistor that works as a fuse when the LNK364GN converter is damaged.

    From the topic: link I concluded that the missing piece of the R118 is the Resistor 56K.

    After replacing the inverter and R118, I connected the board and the relay on the main board clicks the voltage on the motor board, but the engine does not start. 3x 50V appears at the output of 3 transistors. I am asking for help from more experienced colleagues in the world of inverters. Below are photos of the board.
    AEG dryer T59880 Error E50 The induction motor does not start.20170117_2..734.jpg Download (990.42 kB) AEG dryer T59880 Error E50 The induction motor does not start.20170117_2..741.jpg Download (947.8 kB) AEG dryer T59880 Error E50 The induction motor does not start.20170117_2..757.jpg Download (788.93 kB) AEG dryer T59880 Error E50 The induction motor does not start.20170117_2..726.jpg Download (1.56 MB) AEG dryer T59880 Error E50 The induction motor does not start.20170117_2..803.jpg Download (732.01 kB)
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  • #2 16207967
    karol5608
    Level 28  
    And what is the voltage on the secondary side of the inverter on the capacitors? I don't remember exactly, but the R118 was about 22? Fused.
  • #3 16208453
    TONI_2003
    Moderator
    The LNK364 integrated circuit was of course replaced? But what about the electrolytic capacitor (the big one) and the PCB bottom described as S53 (grommet)? Is this intricate web woven :D with through hole resistors is correct to?
    AEG dryer T59880 Error E50 The induction motor does not start.
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  • #4 16209881
    electrogt
    Level 10  
    There is 316V at the input of the converter, at the output at the capacitors, the voltage of 1.6V is pulsating and disappears, etc. It seems to me that the converter is not working properly, as a rule, when the converter is working, you can hear a slight "hiss", and here it is silence.

    As for the intricate connection of resistors, everything is well connected. At the very beginning, I read that it was in place R118 there should be a 22? resistor, but after plugging it into the system and connecting the board, you could hear the relay switching on and off, so I found that something was wrong. Then I found a post that 56k? should be there. By the way, I also replaced the resistor next to the SMD with a regular one because it seemed suspicious.

    This large capacitor has such traces because I discharged it by shorting it and there was a slight boom :) and it has nothing to do with the rest.
  • #5 16210055
    TONI_2003
    Moderator
    TONI_2003 wrote:
    The LNK364 integrated circuit was of course replaced?
  • #6 16210126
    electrogt
    Level 10  
    This is what I wrote in the first post "after replacing the inverter ..."
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  • #7 16210241
    TONI_2003
    Moderator
    Dear colleague, the answer to a specific question is to be precise. I have to calculate how many electronic components it contains? So for the sake of illustration, it is like I would write to you, repair the entire PCB. If you are asking, when setting up a topic on the Electrodynamic forum, follow what I ask or others, and this is even included in the forum regulations, which you have accepted and that's all in the topic ...
  • #8 16210246
    peter falk
    Home appliances specialist
    The R118 resistor is 22?, not 56k?. However, the fact that the relay clicks - probably one of the transistors on the heat sink is released. However, what went to your head to discharge the capacitor by shorting the leads? A resistor of several dozen k? was not at hand? He probably was :|
  • #9 16210292
    electrogt
    Level 10  
    TONI_2003 wrote:
    Dear colleague, the answer to a specific question is to be precise. I have to calculate how many electronic components it contains? So for the sake of illustration, it is like I would write to you, repair the entire PCB. If you are asking, when setting up a topic on the Electrodynamic forum, follow what I ask or others, and this is even included in the forum regulations, which you have accepted and that's all in the topic ...
    When writing the converter, I meant LNK364, sorry for the stupid behavior, nothing but LNK364 and I did not mention soldering 2 resistors.
    peter falk wrote:
    The R118 is 22 ohms, not 56 kt. And that the relay clicks - probably one of the transistors on the heat sink is released. And what went to your head to discharge the capacitor by shorting the leads? A resistor of several dozen k? was not at hand? It probably was :|
    Ok, I will change it back to 22?, I only checked the transistors for short circuits, all have the same indications on the meter, would you suggest replacing them? As for the capacitor, a stupid thing a person sometimes does faster than he thinks :)
  • #10 16225458
    electrogt
    Level 10  
    Resistor 22? soldered and voltage pulsating again any ideas?
  • #11 16225588
    karol5608
    Level 28  
    Like the rest of the items in the LNK364 application? Capacitors and diodes, and see how many elements are included in a similar repair kit. Link
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  • #12 16248314
    electrogt
    Level 10  
    Other elements checked, no disturbing measurements.
    When measuring the voltage on the converter, it looks like in the photo.

Topic summary

The discussion revolves around troubleshooting an AEG dryer model T59880, specifically addressing the E50 error related to the induction motor not starting. The user identified a damaged R118 resistor on the engine control board (ELEW011) and replaced it along with the LNK364GN inverter. Despite these repairs, the motor still fails to start, with only 3x 50V appearing at the output of the transistors. Participants suggest checking the voltage on the inverter's secondary side, ensuring the LNK364 integrated circuit is replaced, and verifying the condition of other components like capacitors and diodes. The user confirmed the presence of pulsating voltage at the output but continues to seek further assistance in diagnosing the issue.
Summary generated by the language model.
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