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A Zanussi E40 error usually indicates "Door open.Check interlock and associated wiring check door latch,check module and connections." However, what most people don't know is that most manufacturers route the poser to the door interlock through the same curcuit that powers up the carbon brushes on the motor. So if your motor brushes are worn down, the door won't lock. Your machine is about the right age for its brushes to be worn out, so I would check this out first. Motor brushes are cheap, easily available on Ebay and fairly easy to fit. Take the current brushes out, if they are less that three quarters of a centimeter long, changing them is a highly likely fix for your problem
A call with the Miele tech helpdesk got me an answer: The tacho unit (coil) should have about 500 Ohm resistance, so they told me. My unit only had about 78 Ohm's, so I ordered a new brush unit (which includes the tacho). The new unit actually measures 250 Ohm, but since it was a new one I did fit it. It works like a charm again. No F53 fault code anymore. The part no. is 6799642 - Module BSTV Mrt40 RK473. It cost me about 70 euro's including shipping. My machine is a type W3821, but the motor and brush unit with tacho is used on a variaty of models. Cheers!
E40 relates to the door being left open when the programme is started, it maybe that the latch was not pushed over when the door was shut.After the door is closed again the fault should go away. If it does not and you hear alot of clicking from the door lock you may just have a door lock at fault.Code E40 is door not closed, could be a mis-aligned door or faulty door switch.-------------But if door is closing properly and you are confirmed that door is getting properly locked, then other possibility can be gunked filter or blocked drain pump.It requires cleaning internally.The procedure is as follows:---Towards the bottom right of the machine is a pull-down flap. Drain the machine - there's a tube at the bottom of the machine with a plastic plug - you'll see a butterfly handle, pull hard; the plug is a round ball on the end of a stick. Unscrew the large diameter thing (pump cover) - Don't do this before the drain step!!! Withdraw the filter cylinder and remove any gunge - the filter port has two ports - the left one is the impellor pump and the right one is the discharge pipe; feel to ensure these are not gunged up either. Reassemble in reverse order - as Haynes say. Almost every programme necessitates a pump activation to assure that the machine is empty of water .-----------
This particular code is used when the machine detects a pump problem or water draining problem. In this case, the fault would occurr just before attempting to spin. It turned out to be a blocked filter, accessible from the bottom front of the machine. so the best thing to do is clean the filter on the front of the machine open the flap and undo the filter water will come out so be ready for that. after it is cleaned and filter all back in and secure switch machine back on at plug and run cycle this should fix it. hope this helps. Here are some error codes for future problems.E10 - not filling E20 - not draining E40 - door open EFO - Filter blocked
E40 is an error from the door locking mech (interlock).this is the bit
behind the port hole door frame ,where the door
striker pin goes through hole.hope this helps you.held on with 2 screws
and you need to remove plastic clamp from door gasket to gain access. E40.door not locking.door interlock faulty or triac faulty on pcb hope this helps pls do let me know