Air fryer trips the household circuit breaker or RCD when plugged in or when heating starts.

Safety first: Do not repeatedly reset the breaker. Unplug the air fryer immediately.

• Visual inspection: Remove the cover and inspect the heater, fan motor, and mains wiring for burn marks, melted insulation, or signs of arcing.
• Check cord and grommet: Inspect where the mains cord enters the cabinet. Ensure the grommet is intact and the metal edge has not cut into the insulation.
• Moisture check: Look for condensation or water inside the heater/fan area, especially if the unit was recently cleaned. Allow to dry completely for 24 hours in a warm, dry place.
• Insulation testing: If you have appropriate test equipment, check for continuity between heater terminals and chassis. Any reading indicates a leakage fault and the heater must be replaced.
• Filter board: Inspect the mains filter for cracked MOVs or burnt components. Replace the filter board if damaged.

Warning: Earth leakage and shorts are serious safety issues. If you are not trained in electrical safety testing, seek professional service.