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E40

AEG Washing Machine

Severity: Moderate

Source: OnlyErrorCodes.com — Every error code. One place.

AEG Washing Machine Error E40 — Door Lock Fix

What Does This Error Mean?

AEG Error E40 means the door lock did not engage when the cycle started. Check the door is fully closed, inspect the latch for damage, and perform a power reset.

How to Fix It

  1. Open and firmly close the door

  2. Inspect the door seal

  3. Check the door hook and catch

  4. Perform a power reset

  5. Replace the door interlock

Frequently Asked Questions

What does Error E40 mean on an AEG washing machine?

E40 means the door lock did not confirm as engaged. The machine refuses to fill or spin without a confirmed door lock to prevent water from spraying out.

How do I open an AEG washing machine showing E40?

If the door is locked with E40, wait 3 minutes, then try the door. If locked, perform a power reset (unplug for 60 seconds). If still stuck and the drum has water, check E20 drainage first.

Can I fix AEG Error E40 myself?

Yes — cleaning the door seal and hook, and performing a reset, are DIY steps. If the door interlock itself has failed, the part is inexpensive and user-replaceable with basic tools.