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The door lock mechanism on this machine is burnt out, what could have caused this?? If I replace this, will it just burn out again if I do not find what caused it to burn out initially?? I have recently changed the main control module and the DC control module to no avail and now noticed the door lock mechanism to be burnt out.Could this have caused the problems (fried main control module and DC control module) or maybe the door lock mechanism got fried after fitting replacement components as the door locked O.K. before the main and D.C. modules were replaced even though these modules were fried. Any ideas would be greatly appreciated. Thanks.
am assuming the wires to the unit burnt out
not an unheard of problem but more common on hotpoint and indesit models due to poor connectors
to replace it you need to make sure all connections are tight and clean. any burnt wire ends will have to be cut back to clean wire and extended if needed
Dave
Thanks for your reply Dave, the wires to the unit are O.K. it is just the unit that is burnt inside, no external indications. I checked the resistance between the three terminals and got no reading or very high M ohm readings so I opened up the unit and it was burnt inside. I just wondered if this would cure the problems I am having with the washing machine, or am I just wasting more money/time and effort, and just pronounce it dead and buy a new washer.
short answer don’t know
its a bit of a suck it and see job. These units have a small heater inside that can fail. That’s also why it looks burnt as it does get hot. Chances are the unit has failed and replacing it will cure the problem but there is a slight chance it has damaged the main board when it failed
door lock should be this one
https://shop.ukwhitegoods.co.uk/d121068-compatible-washing-machine-door-interlock
Dave
Thanks Dave, I decided to suck it and see, fitted new door lock mechanism, door now locks. However nothing else has changed, i.e. in diagnostic/test mode it still gives error code E 17 (over foaming) and on releasing start/pause/cancel button all symbols on display are indicated (steady) then any further presses of the start/pause/cancel button have no effect whatsoever.
When power is switched on without holding in the start/pause/cancel button the display only recognises one programme (indicates spin speed/temp and time for cycle) however the start symbol flashes. pressing of any button has absolutely no effect, except the child lock can be activated/de-activated.
On checking the motor brushes and comm seems O.K. the water solenoid valves each have a resistance of approx 3.5 K ohms (is this typical?)
The replacement door lock mechanism had a resistance of approx 950 ohms.
Just for clarity the burnt out door lock mechanism was not just discoloured through heat, the heating block had disintegrated and the metal part of the contact arm had melted.
Any suggestions has to what to check next would be greatly appreciated.have you checked the board for damage ?
does the door lock as soon as you turn on or does it wait till you press start ?
Dave
Thanks again Dave, sorry for the delay in replying I have now removed and checked the main control board and it appears to be O.K. no noticeable burnt components or tracks. The door lock operates after power is switched on without having to press the start button.
well if the door lock operates without starting and the machine is not in the middle of a programme then I would say the board has a fault. It gets quite technical form here on in as the most likely component to fail on the board is the triac controlling the door lock. As an engineer I can diagnose and most of the time repair this. The manufacturers answer is to replace the complete board
Dave
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