H2 code is displayed and the air fryer does not reach set temperature or stops heating.

Safety first: Unplug and cool the unit before internal checks.

• Check loading: Avoid overfilling the basket or using very cold, large frozen items that can prevent preheat. Test with an empty basket at 200°C.
• Inspect seals: Check the basket rim and any silicone or rubber seals for damage or gaps that allow hot air to escape. Replace worn seals if available as spare parts.
• Heater test: Access the heater and measure its resistance. Compare to expected values from Lakeland service data if available. A significantly higher resistance can indicate a weak element.
• Sensor verification: Confirm the NTC sensor is correctly positioned and not directly in a cold air stream. Replace if readings are clearly inaccurate.
• Control board: If the heater and sensor are good but the unit never reaches temperature, the control board may be limiting power and should be replaced.

Warning: Do not attempt to modify the heater wattage or bypass controls to speed heating; this is unsafe.