Microwave displays E5 and does not heat; turntable and light may still operate.

Critical safety warning: The high-voltage section of a microwave (transformer, capacitor, diode, magnetron) can be lethal. Do not attempt to service these components unless you are trained and equipped to safely discharge capacitors and follow microwave repair standards.

• Step 1 – Basic reset: Unplug the microwave for 10–15 minutes, then plug back in and test. If E5 reappears, do not repeatedly attempt to start the unit.
• Step 2 – Check for obvious damage: With power disconnected, remove the outer cover and visually inspect the high-voltage area from a safe distance. Look for burnt smells, charred wiring, or cracked components. Do not touch the capacitor terminals.
• Step 3 – Do not bypass safety devices: Never bypass thermal cut-outs, fuses, or door switches to clear E5. This is dangerous and can cause fire or radiation leakage.
• Step 4 – Professional repair: E5 typically indicates a failure of the magnetron, high-voltage transformer/inverter, or associated components. These require specialized parts and procedures. Contact an authorized OBH Nordica service center and provide the model number and E5 code.