If the door for your appliance is no longer locking so your machine is not starting, then you may have a faulty door interlock.
The interlock is an electronic device that gives a time delay before the washing machine can be opened – after the wash/drying cycle has been completed. It is a key part of the washing machine, as it is extremely important that the door remains locked during the wash cycle. If you have a faulty interlock, you will find that the washing machine will not start.
This replacement door interlock could ensure you are once again able to use your washing machine as normal, with the door remaining securely fastened by your new interlock.