AEG Washing Machine E40 Error: Meaning, Causes & Safe Checks

E40 Usually simple Safe checks first

Quick answer

AEG E40 (or E41, or 4 beeps or flashes) means the machine can’t detect that the door is closed and locked. Push the door firmly until it clicks, remove laundry caught in the seal, take out a few items if it’s overloaded, and release the mechanical child lock if your model has one. If it persists, book AEG service.

Also shown as E41

What E40 means on a AEG washing machine

The machine can’t detect that the door is securely closed and locked, so it won’t start.

Applies to: AEG washing machines and washer dryers. Models without a display signal it with 4 beeps or 4 flashes.

About AEG E40

AEG washing machines group codes into families (E10, E20, E40 and so on), and models without a display signal the same fault with beeps or flashes. AEG asks you to note the full code before switching off, because a reset clears it. AEG dishwashers use i-codes such as i20.

This page follows AEG UK’s own article, Washing machine error E40/E41. AEG shares this code family with Zanussi E40, but each page follows its own brand’s wording, figures and service route.

What you might notice

Likely causes

What you can safely check yourself

Stop and call a qualified engineer if:
  • The door still won’t lock, or still won’t open, after the checks. Door locks are an engineer repair. Never force the door.
  • The code or problem comes back after you’ve done the safe checks on this page.
  • The appliance is still under warranty. Contact the manufacturer first, because DIY work can affect your cover.

Work through these in order. Stop as soon as one of the signs above applies.

Close the door properly and check for trapped laundry

  1. Open the door and look around the rubber seal for socks or other items caught between the seal and the glass.
  2. Take a few items out if the drum is packed tight. An overloaded drum can stop the door closing.
  3. Push the door firmly shut until you hear a click, then start the programme again.

Don’t force the door or the handle.

Check the child lock isn’t on

  1. Look for a padlock or key symbol, or a message such as CL, on the display.
  2. Turn the lock off by pressing and holding the marked button (or two marked buttons together) for about 3 to 5 seconds. Your manual shows which buttons your model uses.
  3. Some models have a mechanical child lock on the door instead. Your manual explains how to release it.

For this fault: AEG: some models have a mechanical child lock on the door, which you release with a coin or similar. Your manual shows how.

When to call an engineer

If the checks above don’t clear E40, or any of the stop signs apply, contact AEG or a qualified appliance engineer. Have the model and serial number from the rating label ready, and start with AEG UK support.

Repair or replace?

Most E40 cases are cleared by the safe checks above. If they don’t help, the remaining causes are parts an engineer has to diagnose. We don’t publish repair prices because they vary by area, part and model.

Related problems

Related codes

Questions people ask

Is E41 the same as E40 on an AEG?

AEG groups E41 with E40 as a door fault, with the same checks. Models without a display show it as 4 beeps or 4 flashes.

Different code or symptom? Use the fault finder, see all AEG washing machine codes, or read how AEG codes work. Not sure it’s safe? Read our safety information.

Sources

Last checked against these sources: .

We write every page in our own words from manufacturer guidance and check it against the sources above. If your manual says something different, follow your manual. How we check.