All about washing machines

Error code E40 on the Zanussi washing machine

error E40 ZanussiSometimes when using the Zanussi washing machine, a problem arises: the machine turns on, works for a few seconds, and then turns off and gives an error E40. If you do not find and solve the problem, the device will not begin to function. Why the error E40 is displayed on the Zanussi washing machine and how to deal with it, read our article.

Causes of error, adjacent ciphers

E40 is rather a standard error, which indicates a malfunction of the door lock device. The control board of the Zanussi machine has a diagnostic mode that you need to enter in order to most accurately determine the causes of the problem. In the event that your device is not equipped with a software selector, the procedure will be slightly different:

  1. In the picture below you will see two keys on the right under the number 1. Press them simultaneously.
  2. Hold the buttons under the number 1 and simultaneously press the button under the number 2 to turn on the washing device. Hold down the keys until all indicators on the machine begin to flash.

If your washer is equipped with software, then you, as yours said, just enter the diagnostic mode. To do this, hold the two buttons on the right and hold them for a few seconds. If you do everything right, the E40 will disappear from the display, and instead of this code, one of the other error codes will appear:

  • E41 - This is a malfunction code that informs the user about leaks in the closed hatch.
  • E42 - indicates a UBL malfunction.
  • E43 - The triac, which is responsible for the operation of the hatch lock device, is broken.
  • E44 - sensor for opening the drum door in a malfunctioning state.
  • E45 - there is a special electrical circuit between the target triac and the blocking device. E45 indicates a malfunction of this part.

When you find out what is causing the malfunction of your washer, you can proceed to the next troubleshooting steps.

We change the blocking device

However, the error code E40 does not always indicate serious problems with the components of the machine. Therefore, do not go into diagnostic mode immediately after the display shows an error. To begin, press the knee door of the hatch, gently, but quite strongly. In some cases, after such actions, the machine starts to work as usual. However, if this does not help, diagnose the error using the above method, or check the malfunction of the machine parts yourself. Best to start with UBL.replacement of UBL in SM Zanussi

  1. Open the door and remove the clamp from the gum rubber - the cuff.
  2. The lock is attached to the door with special bolts, they are clearly visible from the outside, unscrew them.
  3. Take out the lock.
  4. Check all contacts (3 and 4 contacts are closed, and 4 and 5 are open).
  5. Put a new lock, carefully releasing the old one from the wires
  6. Return the clamp to its original position.
  7. Turn on the washing mode to check the operation of the machine.

If everything works properly, then you have completed the task and now you know what to do and how to fix the problem. Error E40 can occur at any time, and the fact that you know how to act in this situation will significantly save your time.

Other breakdowns causing the code

The control board is connected to the UBL using special electrical wires. If one of them stops working, the contact between the board and the UBL is broken and, accordingly, you will see an error code on the screen. Using a multimeter, check each wiring individually to find the faulty one.

The triac responsible for the door lock is located on the control board. And it’s much harder to fix it. If you do not have special training, then most likely you will not even be able to find this small part on the board. And if you can, in case of malfunction, the board requires soldering, which you can hardly do yourself.

In the picture below you see a photo of the EWM200 model board.The part we need is indicated by the words “This element collapsed” and is located in the lower right corner. Of course, if you have any experience with similar problems, you can try to fix the part with your own hands, but if not, it is better to contact a specialist.

SM Zanussi board

However, the appearance of the E40 on the display of your car can be caused by a breakdown of any other part in the door opening and closing system (breakage of the lock itself, triac burnout). Therefore, in order to surely diagnose a breakdown, you will have to check all the components from the above system.

At least, at least roughly knowing what caused this error and how to resolve it, you can try to influence the operation of your device yourself. Masters can be called in an extreme case, if independent manipulations have failed.

   

Reader Comments

  • Share your opinion - leave a comment

Add a comment

Read also

Error codes for washing machines