Induction cooktop displays E3 and refuses to start or shuts down when multiple zones are used at high power.

Safety first: Disconnect the appliance from mains power at the breaker before inspecting wiring or internal components.

• Step 1 – Reduce load: Try operating only one zone at medium power. If E3 does not appear, the issue may be related to supply capacity or wiring.
• Step 2 – Verify installation wiring: Compare the actual connection at the terminal block with the wiring diagram on the cooktop label. Ensure jumpers are correctly placed for your mains configuration (e.g., 230 V single phase vs. 400 V two/three phase).
• Step 3 – Check circuit rating: Confirm that the circuit breaker and cable cross‑section meet Balay’s specified amperage. Undersized wiring can cause voltage drop and overcurrent trips in the electronics.
• Step 4 – Inspect for visible damage: With the bottom cover removed, inspect the power board and induction coils for burn marks, cracked components, or melted insulation. Do not power the unit while open unless you are a trained technician.
• Step 5 – Component testing (technician): Use a multimeter to check each induction coil for shorts to ground and correct resistance. If a coil is shorted, replace the coil assembly. If coils are fine, the power module’s current sensing or IGBT section may be defective and should be replaced as a complete board.

If you are unsure about the electrical installation, have a licensed electrician verify and correct the wiring.