Induction cooktop displays E3 and does 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
Safety first: Do not continue to operate the cooktop when E3 is displayed. Switch off the appliance and isolate it from the mains at the circuit breaker.
User-level checks:
- Confirm that no other high-power appliances are causing flickering lights or voltage issues in the home.
- Check that the cooktop rating label matches your household supply (e.g., 230 V single-phase or 400 V 2N~).
Electrician/technician checks:
- Verify the terminal block wiring against the Siemens wiring diagram (bridges, phase, neutral, earth).
- Measure mains voltage under load to ensure it is within Siemens specified limits.
- Inspect the neutral conductor for secure connection and no signs of overheating.
- If wiring and mains are correct, test the power module voltage sensing circuit; replace the module if faulty.
Because this involves mains wiring, a licensed electrician or Siemens service technician should perform the detailed checks.
Repair Difficulty
Required Part
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