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djc djc is offline
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Default Washing Machine Woes

On 06/08/2019 09:14, Thomas Prufer wrote:
On Tue, 30 Jul 2019 21:32:46 +0100, Steve Walker
wrote:

Incidentally, why do the door interlocks have such long delays? Our
machine finishes pumping and stops spinning and comes to a complete stop
within seconds, yet won't allow opening the door for 3 full minutes - a
pain when you are waiting for it to finish.


Some of those interlocks are thermal: i.e. bimetal strip carries a current,
heats, bends and locks, and needs to cool to unlock.


see

How a washing machine door interlock with time delay works.


https://youtu.be/PIm7q_U3UEM



bigclivedotcom
Published on 7 Jun 2019

Like most of the components used in home washing machines the door locking mechanism is ultra cost optimised and refined for cheap and easy manufacture. Yet it performs three separate functions. Locking the door, enabling the machine when the door is fully locked and unlocking the door after a time delay to allow a spinning drum to come to a halt before it can be opened.






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djc

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