AEG Dishwasher Error Codes: Complete Troubleshooting Guide for London Homes

AEG dishwashers are trusted in many households across London for performance and durability. But even a top‑tier machine can show an error code when something goes wrong. These codes aren’t just random—they’re diagnostic tools designed to help you identify the fault quickly.

In this guide you’ll find a **very comprehensive list of AEG dishwasher error codes**, along with what each code means, what you should check, and how you might fix it (or when you’ll need to call an engineer). Especially useful for London homes where water pressure, hose routing or building layout may influence dishwasher performance.

How to Read AEG Dishwasher Error Codes

Depending on your model, your AEG dishwasher may use one of the following to display faults:

Digital error codes such as “E10”, “E20”, “E30”, etc.
Alphanumeric codes starting with “i”, “C”, “F” (e.g., i10, C2, F1) in certain models.
Flashing LEDs (for older models) where one → five flashes correspond to specific faults.

Comprehensive List of AEG Dishwasher Error Codes & Fixes

Error E10 / E11 AEG Dishwasher

Meaning: Problem with the water supply (inlet blocked or low pressure).
Fix: Check main water tap is fully open, inspect the inlet hose for kinks or blockages, clean the mesh filter at hose connection. If the issue persists, the inlet valve may need replacement.

Error E20 / E21 AEG Dishwasher

Meaning: Drainage problem — water cannot exit the machine properly.
Fix: Check the drain hose for restrictions or kinks, clean bottom filter and sump area, ensure sink outlet is clear. If the pump doesn’t work, it may need to be replaced.

Error E30 AEG Dishwasher

Meaning: Anti‑flood device triggered (water detected in base, leak or overflow).
Fix: Switch off power and water supply, tilt machine slightly to drain excess water (if safe), inspect door seal, hoses and floor for leaks. If the sensor triggered repeatedly, professional inspection is required.

Error E40 AEG Dishwasher

Meaning: Door not closed properly or door lock fault.
Fix: Ensure dishes are not obstructing door, shut the door firmly, inspect latch mechanism. Replace latch if it fails to lock securely.

Error E50 AEG Dishwasher

Meaning: Motor fault — main wash motor or drain pump motor issue.
Fix: Reset the machine by power off 10 minutes. If error persists, have a technician inspect motor bearings and wiring; replacement may be required.

Error E60 AEG Dishwasher

Meaning: Water heating issue or temperature sensor fault.
Fix: Check heating element for continuity, verify thermostat/NTC sensor readings, inspect wiring. Replace the faulty part if confirmed.

Error i10 AEG Dishwasher

Meaning: Water inlet issue (1 flash or i10 code) — filler not detected.
Fix: Clean inlet filter, open tap fully, check hose routing, ensure proper water pressure.

Error i20 AEG Dishwasher

Meaning: Drain fault (2 flashes or i20 code) — water not being removed.
Fix: Clean drain hose and filter, check pump operation, ensure correct hose installation height to avoid siphoning issues.

Error i30 AEG Dishwasher

Meaning: Leak or overflow detected (3 flashes).
Fix: Turn off water and power, inspect base tray for water, check door seal and hoses, call technician if leak persists.

Error C2 AEG Dishwasher

Meaning: Drainage not functioning correctly (C2 code).
Fix: Check filters, check hose path, verify pump. Clear any debris and test a rinse cycle.

Error i40 AEG Dishwasher

Meaning: Filter or drain pump fault (4 flashes).
Fix: Remove bottom filter assembly, rinse thoroughly, check pump impeller free‑spinning, then test again.

Error i50 AEG Dishwasher

Meaning: Control board or pump triac fault (5 flashes or i50 code).
Fix: Reset machine. If the code persists, the PCB or pump relay/triac may need replacement by a qualified technician.

Error i60 AEG Dishwasher

Meaning: Heating circuit fault (6 flashes).
Fix: Inspect heating element, wiring, thermostat. Replace heating component if necessary.

Error i70 AEG Dishwasher

Meaning: Temperature sensor fault (7 flashes).
Fix: Test the NTC sensor; if out‑of‑range, replace it and check wiring for damage.

Error i80 / i90 AEG Dishwasher

Meaning: Electronic module communication or firmware malfunction (8–9 flashes).
Fix: Reset power for 10 minutes. If persists, diagnose control board, re‑flash firmware or replace board.

General Troubleshooting Tips for AEG Dishwashers

Check water supply and pressure: London flats often suffer from low pressure — ensure tap fully open and hose unobstructed.
Keep filters and spray arms clean: Regular maintenance prevents much drainage and flow‑related error codes.
Ensure correct drain‑hose routing: The drain hose must be at correct height and free from dips to avoid siphon/backflow issues.
Reset before proceeding with major repairs: Turn off machine from mains for 5‑10 minutes, restart and see if code clears.
Use correct detergent and rinse‑aid levels: Over‑foaming or incorrect chemical balance can trigger sensors and confuse machine logic.

Professional AEG Dishwasher Repair in London

If your dishwasher keeps showing error codes after your own checks, it’s time to bring in a specialist for AEG dishwasher repair. Our London‑based engineers cover all postcodes, carry genuine parts and provide same‑day support.

📞 Book your AEG dishwasher repair today!

From E10 to i90, if you’re seeing persistent error codes or your machine isn’t functioning properly, don’t delay. Schedule online.