E23
Siemens Washing Machine
Urgency
⚠ High
Stop using immediately
Repair difficulty
🔧 Competent DIY
Some experience required
⚠️
For information purposes only. Always consult a qualified engineer before attempting repairs. 🔌 Unplug your appliance before any inspection or repair.

How serious is the Siemens E23 error?

High — Stop using your washing machine immediately.
The E23 error means that the machine’s leak protection system (Aquastop) has detected water where it shouldn’t be. Continuing to use the machine could lead to flooding or electrical damage.

What does the Siemens E23 error code mean?

The E23 error code appears when water is detected in the washing machine’s base tray. This triggers the Aquastop safety system, which prevents the machine from filling or spinning to avoid leaks.

How to fix the Siemens E18 error code

Follow these steps carefully:

  1. Turn off and unplug the machine
    1. For safety, always disconnect power before inspecting any components.
  2. Check for visible water leaks
    1. Look under and around the washing machine for water.
    2. Check hoses, seals, and connections for loose fittings or cracks.
  3. Inspect the drain pump
    1. The pump may be blocked or leaking.
    2. Remove debris and make sure the pump is securely fitted.
  4. Check wiring connections
    1. Loose, damaged, or wet wiring can trigger the E23 error.
    2. Only attempt this if you feel comfortable working near electronics. Otherwise, call a technician.
  5. Inspect or replace the control board (PCB)
    1. If the pump and wiring are fine, the PCB may be faulty and sending false leak signals.
    2. PCB replacement is usually handled by a professional technician.

💡 Top Tip: Even a small leak or blocked pump can trigger E23. Start with the simplest checks (pump and hoses) before moving to electrical components.

Frequently Asked Questions

Can I reset this error?
You can temporarily reset it, but the underlying leak must be fixed.

Is this dangerous?
Yes — water and electrics pose a risk. Always consult a professional if unsure.

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🎯 What is likely causing this fault?

⚙️
Faulty pump 45%
💡
Wiring problems 30%
📡
Faulty control board 25%

⚠️ Estimates based on common faults — not a guaranteed diagnosis. Always verify before ordering parts.

🔩

Parts you may need

Enter your model number to filter results to your exact machine

Usually found on a label inside the door frame or on the back panel of the machine.

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Part Approx. UK Cost Find it
Drain Pump £20 - £45
Drain Pump £20 - £40

ℹ️ Prices are approximate. Always check the part number matches your model before ordering. Not sure of your model number? Find out how to locate it here.