Induction hob displays E3 and will not heat on one or more zones
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Critical safety warning: This error relates to mains voltage. Do not attempt internal repairs unless you are a qualified electrician.
User checks:
- Turn off the hob and isolate at the circuit breaker immediately.
- Check that no other high-power appliances are causing visible flickering or issues on the same circuit.
- Consult the installation manual to confirm the hob is wired for the correct voltage and phase configuration for your region.
Professional checks (electrician/technician only):
- Measure the supply voltage at the terminal block to ensure it matches AEG specifications (typically 220–240 V single-phase or 400 V 2N/3N depending on model).
- Verify correct bridging of terminals and tightness of connections.
- If supply is correct, test the power module voltage sensing circuit; replace the module if defective.
Do not continue using the hob until the supply and wiring are verified safe.
Repair Difficulty
Required Part
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