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Türschalter Metalflex ZV-446 reparieren

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  1. Türschalter Metalflex ZV-446 reparieren, Türschalter Metalflex ZV-446 reparieren: étape 1, image 1 de 1
    • Entferne die Türverriegelung deiner Maschine. Bei meiner Waschmaschine musste ich die Gummiblende entfernen und zwei Schrauben lösen. Dann konnte ich die Verriegelung mit einem 3-poligen Kabel entfernen. Auf der Rückseite ist eine Plastikblende, bei der man die Schrauben auch lösen muss.

  2. Türschalter Metalflex ZV-446 reparieren: étape 2, image 1 de 1
    • Ziehe den Stecker ab und entferne die rote Abdeckung der Kontakte. Er wird von zwei eingerasteten Zähnen gehalten, die sehr fest sitzen (beschädige die Abdeckung der Kontakte nicht). Benutze einen kleinen Schlitzschraubendreher, um die Zähne zurück zu schieben.

    • Entferne die Oberseite des roten Gehäuses. Es gibt 6 eingerastete Verriegelungen die geöffnet werden müssen. Gehe sicher, dass du vorher die Abdeckung der Kontakte entfernt hast! Das kann man wieder am besten mit einem kleinen Schlitzschraubenzieher oder einem Messer tun.

  3. Türschalter Metalflex ZV-446 reparieren: étape 3, image 1 de 1
    • Der mittlere Kontakt ist üblicherweise für den Schalter im Relais. Der rechte Kontakt ist für die Spule und für die Relais-Funktion der Verriegelung.

    • Der Linke ist für den Türschalter. Das ist derjenige, welcher bei meiner Maschine nicht richtig funktioniert hat.

    wie kann man überbrücken?

    Gerhard Grassegger - Réponse

    Was genau möchtest du überbrücken?

    Fabian Neidhardt -

  4. Türschalter Metalflex ZV-446 reparieren: étape 4, image 1 de 1
    • Der Pfeil deutet auf den Schalterkontakt. Meine Maschine arbeitete nicht mehr, weil der Türschalter nicht richtig funktionierte. Die Maschine hat nicht gemerkt, dass die Tür geschlossen ist und daher auch nicht begonnen zu waschen.

    • Wenn sich der Schalter schließt, bewegt sich die Kupferplatte mit dem Pfeil im Bild nach unten. Darunter befindet sich das Ende des Schalterkontakts von außen. Es kann vom Plastikgehäuse abgenommen werden. Du solltest die Kupferplatte mit dem Pfeil vorsichtig nach oben biegen. Nach dem Entfernen kannst du die Kontaktfläche darunter reinigen.

    • In meinem Fall hat Nagelentferner nicht funktioniert, deswegen habe ich den Schmutz mit einem Messer weggekratzt. Ich sehe keine Möglichkeit, die obere Kontaktfläche zu reinigen, weil die Kupferplatte nicht entfernt werden kann. Für meinen Schalter war es ausreichend, die untere Kontaktfläche zu reinigen und meine Maschine ging wieder!

    thank you very much! it avoids me to buy a new one; mine was 10 years old month to month, as it was cheap 200€ i did not want to spend too much time or buy parts. as i have no more young child, i will short the switch to common...

    elo.bonjean - Réponse

    Sorry,

    This is a very weak post….anyone could describe what you described….no pictures to show how to dis-assemble the internal parts?..

    juriemagic - Réponse

    Thank you so much!! My washing machine did like yours, my husband opened it up. Thought it was that little piece causing the trouble. I googgled the name of the piece and your awesome, helpful post appeared! You saved us the price of a new washing machine. Thank you for taking the time to write up those instructions!

    Amelie Llorca - Réponse

    Не разбирайте этот Device! Снимете его. Питание стиральной машины должно быть отключено! Замерьте сопротивление между N (средний контакт) и L (управление, более тонкий и возможно красный провод). Оно должно выражаться 3-х значной цифрой. Если на тестере отображается 1 то Device не исправен. Просто закажите новый. Если хотите экспериментировать дальше) не разбирайте Device. Если у Вас отсутствует характерный щелчок перед выполнением программы есть шанс исправить положения при помощи винта на обратной стороне (на фото автора его нет, он с обратной стороны) Доверните винт на не большой угол по часовой стрелке. Тем самым Вы выберете зазор и заставите “реле “ (это тепловое реле) срабатывать снова. Не выкручивайте винт до конца, не крутит в разные стороны))) Я просто заменил этот Device (Реле) в сборе. Но из любопытства открыл старый Device и изучил его конструкцию)))

    PS Используйте силиконовый герметик для фиксации винта после регулировки. Спасибо)

    Marathon B. - Réponse

    If you take the parts out from below the switch, make sure they go back in correctly. Best to take a photo. At the bottom is usually an adjustment screw. Next goes the saddle which has a hole in the middle and two bent lugs that should be bent up towards you when the saddle is in position. There are four pegs the saddle sits between, it has notches in the edges. Then the bimetal strip, on mine the writing was towards me and the small notch at one end should face the terminal lugs. Then the pellet which heats up (this can go either way up). Finally the switch mechanism can be inserted and carefully screwed in until the screw bottoms out (don’t over torque or you will strip it)

    If the bimetal strip is upside down (as in my first attempt) then it will bend the wrong way and the interlock won’t work.

    Tim - Réponse

    Besten Dank erstmal, genau das war das Problem. Ich mußte immer mehrere Male mit dem Knie gegen die Türverriegelung stoßen daß die Maschine endlich startete, und das schon seit einigen Jahren. Oxidierte Kontakte reinige ich immer mit einem Radiergummi. Der untere Kontakt ist ja herausnehmbar, also kein Problem. Ich habe von einem Radiergummi eine 1mm dicke Scheibe abgeschnitten und diese Scheibe mit Hilfe einer Pinzette nach vorsichtigem Hochbiegen der Kupferplatte einige Male über den Kontakt gezogen, spiegelglatter gehts nicht. So habe ich beide Kontakflächen wieder wie neu. Ich denke das Problem ist das Feuchtklima in der Maschine die die Kontakte oxidieren läßt. Das nervigste an dieser Reparatur war für mich das Entfernen dieser Kontaktabdeckung mit den 2 Widerhaken die sich ja kaum reindrücken lassen. Dann ist mir auch noch die kleine U-förmige Bügelfeder zwischen Bimetalstreifen und Kontaktträger herausgesprungen. Eine sehr gute Anleitung mit guten Bildern, besten Dank nochmal.

    Hannes Baum - Réponse

    Huhu,

    coole Anleitung Danke !

    Hinzufügen kann ich auch etwas: Wenn das gehäuse offen ist,kann der mittlere Steckanschluß (Common) vorsichtig nach ober heraus gezogen werden. Vorsicht! Die Federspange fliegt sehr weit ;-). Dann können die Kontakte Prima gereinigt werden und verbiegen nicht.

    Primate - Réponse

    I tried to fix mine as per the method to no avail.

    I’ve ordered a new one and bypassed the lock in the meantime so we can still use it (bridged switch and common inside the mechanism with a wire).

    Andrew S - Réponse

    Hi there, any chance you could explain which colour cable goes into which pin please? I stupidly pulled and messed the connector, and forgot to take photo of it so now I have no idea which cable should connect back to which one!

    Roy Luo - Réponse

Conclusion

Um dein Gerät wieder zusammenzubauen, folge diesen Anweisungen in umgekehrter Reihenfolge.

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Ludwig

Membre depuis le 05/03/13

916 Réputation

1 tutoriel rédigé

27 commentaires

have problems to build the metal flex 446 back together

toy - Réponse

Thank you very much for your guidance here.

It has made things so much easier for me in my travails with our misbehaving washing machine and its faulty door-switch!

Tone Bone Charles - Réponse

Thank you a lot Ludwig, it worked perfectly with my ill machine as well! You offered us a great guide. Cheers!

totor - Réponse

Thank you so much. Before reading your amazing technique, I disconnected the device and connected the two cables corresponding to the letters L and C ('Switch' and 'Common' in your pictures). The machine worked again, but without door locking security. Thank to you I didn't have to buy a new device. Cheers! from Paris

Stephane - Réponse

These locks are not usually all that expensive in the UK, though for some makes e.g. Whirlpool & Miele they are. Make certain that 1) the locking mechanism is working after you re-assemble and that 2) the machine will not operate with the door open. There have been instances of injury caused, especially to inquisitive children - one of whom lost an arm. The drum moves with a very high torque. A more common fault is that the contacts to the little disc heater (what you called a relay) get oxidised and either the heater won't operate the bi-metallic disc or the plastic gets carbonised and a short circuit is created which can also cause the timer / module to be damaged. For the latter reason, it's best to change the lock soon after it starts to play up.

Michael Orman - Réponse

Didn't look into this topic for a long time. Thanks a lot for the correction that the lock is bimetal operated and not via solenoid. This is also interesting from an engineering point.

I think your remark on reduced safety of operation cannot stated enough:

Know what you are doing and what the results could be. If you repair something and introduce risks make sure everyone involved knows about them.

Ludwig -

Thank you so much for your guidance Ludwig, after I cleaned all the contacts of the whole lock, my washing machine could work prefectly again.

During the dismantling of the lock, I found that the center contact with the the copperplate could be pulled up and removed, then we can clean anything that we want.

Chi Siu

CM Siu - Réponse

Mine was a bit burned, and I couldn't get it to work properly so I connected Switch with Common. Now the machine always thinks the door is closed but I can open the door while washing.

RoyalHighness - Réponse

This post was really helpful, I was able to bring out the copper plate of my switch and cleaned every contact within the switch and a little adjustment within the coil and the common and this really worked as my machine is up and running now. Thanks a lot!

Simon - Réponse

I got the 445 variant of this, I just bypassed this stupid switch so it can never fail again, all what has be done is make sure the door is closed before turning the machine on which is exactly what I and anyone else do anyway.

maximillian.schrott - Réponse

Surely ,the information with relevant photos are useful and many people like myself would like it. Thank you.

rislam5088 - Réponse

Thanks, useful information.

rislam5088 - Réponse

I got the same problem and bypassed Common with L cable. But problem persisted on Vestfrost washing machine. Any help please?

ccachia - Réponse

What should be the voltage between common and coil for the bimetallic strip to work?

Amrit Rai - Réponse

I swapped mine out for a new one, only 15 dollareedoos. You could see that the solenoid on mine had blown.

bennu_7 - Réponse

Thanks for the information. And what is the use of coil wire? It it important to ignore this wire if I connect directly Switch wire and Common wire? And the machine will it work?

mine it’s only spine once it is draining and draying but no spinning on washing

matextambiri - Réponse

I don't think your problem is related to this interlock.

You are right, if the bimetal (thanks for the correction in the other comment) actuator is powered the switch contact will indicate the locked door, so shorting it might be a dangerous fix, but if your spinning cycle is messed up I'd look at other points of failure. If the switch was broken your machine would either not start at all, or run even with an open door.

Ludwig -

Thanks for highlight me on this.

matextambiri - Réponse

My washing machine is in trouble and looking for a specific part until i ended up in this site. I followed the steps and viola!! My washing machine is back on operation. Thanks to this site especially to the writer. Big help!!! I dont need to buy that part!!

erwinbaetiong - Réponse

Is it possible to check by giving 230v supply and pressing the lock manually

Dhanish p - Réponse

Your advice and instructions are fantastic and well-explained!

You helped me fix and run again my washing machine without wasting a lot of money on a very expensive technical service for such an easy problem to fix, or to rid of my washing machine, Thank you!

I got a used washing machine in a good condition, but for some reason it did not run after installation (It showed a Door ERROR sign on use). Fortunately, following your instructions, helped me find the “source” of the problem, which was dirt on the contact area of the bottom switch contact and on the other parts as well. So, I scratched the dirt off the contact area of the bottom switch contact and the other related parts with a sharp tool as you suggested, and then assembled everything back, and the washing machine worked PERFECTLY!

Omar - Réponse

15 year old low cost washing machine stopped operating today. Without any idea of the inner life and operation I started my search. Came across the door switch which was unusually warm.

Found your guide and with this help opened the device. Just needed some reassembly to get it working again.

It’s great that such “little” support can bring one that far. Instead of buying a new machine which seems a reasonable reaction considering the age, I can go on with it as it does its job as on the first day.

Thousand thanks for your help and making our life a little bit more sustainable.

Elon Koman - Réponse

Thank you for the great in depth description!

Leon Bird - Réponse

@ guide / step 4 ...although many of you have already come to the same conclusions in the meantime

In fact, it is possible to access the electrical contacts by carefully lifting the Common contact assembly from its seat in the housing (the middle one on the picture). Be careful and remember or take a photo of the exact position of all parts before in case something falls apart during disassembly.

Below is a disc-shaped PTC resistor, whose side surfaces are also electrical contacts and are most certainly oxidized, so clean them as well as the main (live) electrical contact pair using rubber alcohol (Isopropyl alcohol) and a piece of felt or ear sticks.

Do NOT use sandpaper or any other abrasive or rough hard tool, because in this way you will certainly damage the smooth surface of the electrical contact, protected from oxidation by a very thin layer of a precious metals alloy (Platinum, Iridium) and this will for sure shorten its life, unless their contact surfaces are already dented.

Tom Cat - Réponse

...

ONLY in this case, you can try to repair the contacts with a fine key file and vet dry sandpaper (600 grit or finer), because you have nothing to lose, to quickly return the device to operation in case of emergency, but it is probably the best to replace the entire assembly as soon as possible, because after that it will not most certainly last much longer.

I wish you luck and joy in repairing and making our life a little bit more sustainable ...as some of you already said ;)

Tom Cat - Réponse

Thank you so much for sharing. I did the same steps, it works!

Herdian Wisnu Prabowo - Réponse

Its 21:00 on a Friday night in Greece, just as I was about to relax the wife complained that the washing machine does not start. After a quick troubleshooting I knew the problem was with the locking mechanism and in a 2 min google I found your article and 20 mins later the washing machine works. My dude whoever you are and wherever you are, just know that you just saved my weekend. My cold beer is dedicated to you my friend

George - Réponse

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