How a washing machine door lock works, how to test interlocks
712,949
Published 2015-02-19
*In this video, you'll learn:
How washing machine door locks work: Explore the mechanics and electrical components behind the lock, including the bi-metal strip, PTC heater, and locking pin.
Testing your door lock: Discover safe and effective methods to test the lock's functionality using a multimeter and understanding wiring diagrams.
Troubleshooting common problems: Identify potential causes of a malfunctioning lock, such as a faulty bi-metal strip or distorted plastic parts.
Repair solutions: Gain insights into fixing the lock yourself, including replacing damaged components.
Bonus:
Shop for replacement parts: Easily find the correct door lock for your washing machine model through the provided links.
Access additional resources: Explore comprehensive tutorials on door lock replacement and tips for dealing with a stuck door.
Don't let a faulty door lock disrupt your laundry routine! Watch this video today and gain the knowledge and confidence to diagnose and fix the problem yourself.
🛒 * Washing machine door locks
www.how-to-repair.com/help/search-page/?searchVal=…
🎥**Tutorial:* www.how-to-repair.com/help/how-a-washing-machine-d…
Washing machine door locks really only get 3 major faults
The points between live and common fail in some way.
The NTC heater or bi-metal strip fail.
The plastic gets to hot and distorts inside the lock causing it to jam.
Washing machines must have some way in which you can lock the door closing mechanism when the machine is started up and then unlock them with a certain delay (normally two minutes) after the current has switched off via the program or on/off switch, in order to ensure that the door cannot be opened while some of the components are still rotating initially (in particular the motor and the drum of the spin-dryer).
When you shut the door, the latch on the door pushes inside the door lock onto a sliding bar which moves over and activates an electrical part inside which locks the door shut. At the same time, power is passed through the interlock on to the rest of the machine. The actual latching shut of the door is a simple spring-loaded mechanism where the latch just slips into the door catch and the door stays closed. Locking the door is a separate process.
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All Comments (21)
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We now have Live Q@A's weekly on our live Show , see our home page youtube.com/c/How-2-repair for the next date :stayhome:
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I am a commercial heating engineer and I must say how precise this video is and it make a very pleasant change to see a professional instruct clearly what to do..... Many thanks
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Thankyou soo much for this video! I thought I’d have to remove the whole top & front panels, or book a service call! This took just minutes to fix & saved me $$! Happy dance!!
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Very good video - I didn't realise the interlock was so complex - thought it was a simple switch. Thanks
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Very well explained ! Never thought that they would use a heater mechanism to allow / disallow the latch to open. All along the years, could not understand why the small delay at the end of the cycle. Thank you.
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You deserve a million likes Thank you so much for good details
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This video showed and proved to me that is time for a new machine. Paul you are great explaining how this switches works. It is terrible, they should not make it bi-metal enforced, this is really old design. It is so much easier to do by computer program, Water is out of the machine to the door level? yes - no if yes, open door immidiatelly if no restart a drain cycle, tell the customer water in machine to high, draining. then open door. Paul you are did a fantastic job!
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Very big thank you! with the help of this I managed to clean my interlock and it's working again:)
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Very good video when he mentioned and ohm reading on the heaters it is open or closed you dont need a resistance measurement in numbers its open or closed.
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Thank you just what I needed, I was 90% there and you gave me the confidence 10%. Well explained and good video.
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Thanks very much for the useful video including seeing INSIDE the interlock device.
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if its 3 4 5 the diagram which one should be connected plz help my washing machine is ariston washing machine ar6f105
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really great explanation of how the switch works, thanks
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i've been looking for this demo a while now. greal help .thanks.
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Thank you this helped me fix my latch. Mine just seized but when I took it apart it became free, thank you for all you help again
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Excellent and well shown demo, Paul. Thanks.
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Thanks for this crash course in washing machine anatomy! It's a real pain if you can't solve a problem just because you don't know how the parts you are struggling with actually look like. It's always the same: as long as things work, I don't even ask myself how they do so. It's only when something stops doing what it's supposed to that people like me start asking questions xD!
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very good video. good clear instructions. thanks mate.
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great info i to thought it would be a simple micro switch to lock unlock the door but n as i got inside witch then found myself watching your video to see the working as i thought id be able to just bypass it for now as the mrs is on my case now as like most stuff around the house its left till last minute now we have a pile of washing the mrs will have me doing laudry runs if not sorted soon. but thanks again for the info on the door workings even though i learnt something today and it wasnt as basic as i first thought.
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Awsome demonstration and explanation!
