Display shows E3 and the air fryer stops heating during operation.

Safety first: Unplug the unit and let it cool for at least 30 minutes. Do not bypass any safety devices.

• Step 1 – Check ventilation: Ensure there is at least 10 cm (4 in) clearance around all sides and top of the air fryer. Remove any objects blocking the rear or side vents.
• Step 2 – Clean air paths: Remove the basket and pan. Inspect the top heater area and rear vents for grease and crumbs. Clean thoroughly to restore airflow.
• Step 3 – Confirm fan operation: Start a short cycle with an empty basket. Listen for the internal convection fan. If the fan does not run, the unit can overheat and trigger E3.
• Step 4 – Inspect thermal cutoff: With the unit unplugged and cover removed, locate the thermal fuse/thermal cutoff mounted near the heater. Check continuity with a multimeter. If open, replace with the same temperature and current rating only.
• Step 5 – Check high‑limit thermostat: Some Midea models use a resettable thermostat. Test for continuity at room temperature; if open and not resettable, replace.
• Do not bypass: Never short or bypass the thermal fuse or thermostat; this is a fire hazard.