Introduction

My washing machine gave me a hard time only starting after some door opening and closing. Sometimes it would start right away, sometimes I had to try 8 - 10 times until it started washing. I figured that there was a problem with the door switch, witch determines weather the door is closed correctly. I supposed a contact problem, so the maschine thougth the door was still open and hence did not start washing. I did not find any repair device on the Internet, put some people wondering which contact does what. So i took a picture while repairing and tried to figure out what the contacts are for.

Note: Another trouble with the interlock (experienced in another device, but similar symptoms) was caused by displacement of the axis which the lock catch swings on. The round front door was disassembled (screws and plastic latches), the axis was put in its place and fastened with glue.

Remove the door interlock from your device. On my washing machine I had to remove the rubber-lid and loosen two screws. Than the interlock came of with a 3-pol cable attached. On the backside was a plastic plate which had to be unscrewed, too.
  • Remove the door interlock from your device. On my washing machine I had to remove the rubber-lid and loosen two screws. Than the interlock came of with a 3-pol cable attached. On the backside was a plastic plate which had to be unscrewed, too.

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Pull of the plug and remove the red cover arround the contacts. It is held with two snap-in connectors and its pretty tight (dont destroy the contact cover). Use a small flathead screwdriver to push the hooks away.
  • Pull of the plug and remove the red cover arround the contacts. It is held with two snap-in connectors and its pretty tight (dont destroy the contact cover). Use a small flathead screwdriver to push the hooks away.

  • Remove the top of the red housing. There are six snap-ins to open. Make shure you have removed the contact cover first! Again this is best done with a small flathead screwdriver or blade.

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The center contact is common for the switch an the relais. The right one goes to the coil and is for the relais-function of the interlock.
  • The center contact is common for the switch an the relais. The right one goes to the coil and is for the relais-function of the interlock.

  • The left one is from the door switch. This is what malfunctioned on my washing machine.

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The arrow points the contact of the switch. My machine stopped working because the door switch did not work properly. The machine never detected a closed door and hence never started wasching.
  • The arrow points the contact of the switch. My machine stopped working because the door switch did not work properly. The machine never detected a closed door and hence never started wasching.

  • When the switch closes the copper plate with the arrow in the picture moves down. Underneath ends the switchcontact from outside. It can be removed from the plastic housing. You should gently bend up the copper plate with the arrow. Once removed you can clean the contact area of the bottom switch contact.

  • In my case nailpolish remover did not work, so I scratched the dirt off with a blade. I dont see a way to clean the top contact of the switch, because the copperplate is not removeble. For my switch cleaning the bottom contact was sufficient to get the washing machine working!

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 - Reply

Conclusion

To reassemble your device, follow these instructions in reverse order.

12 other people completed this guide.

Ludwig

Member since: 05/03/2013

391 Reputation

1 Guide authored

7 Comments

have problems to build the metal flex 446 back together

toy - Reply

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 - Reply

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

totor - Reply

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 - Reply

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 - Reply

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 - Reply

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 - Reply

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