Air fryer displays E4 and will not start or stops mid-cycle, often after long cooking sessions.

Safety first: Unplug the air fryer and let it cool fully. Internal components may remain hot for 30+ minutes.

• Step 1 – Inspect exterior and vents: Confirm that all vents are clear and the unit is not used in an enclosed space. Clean any visible grease from vent openings.
• Step 2 – Access heater assembly: Remove the top or rear cover to expose the heating element and wiring. Locate the thermal fuse (small cylindrical or capsule component in series with the heater leads, often wrapped in fiberglass sleeve).
• Step 3 – Test thermal fuse: With a multimeter set to continuity, test across the fuse leads. If it reads open (no continuity), the fuse has blown and must be replaced.
• Step 4 – Check for root cause: Inspect the convection fan for proper rotation and cleanliness. Heavy grease on the heater guard and fan blades can cause hot spots. Clean thoroughly with a non-abrasive degreaser and soft brush.
• Step 5 – Replace fuse: Install a new, temperature- and rating-matched thermal fuse specified for Vida by PADERNO air fryers. Do not substitute with a higher temperature rating. Ensure all connections are crimped or soldered properly and insulated with high-temperature sleeving.
• Step 6 – Test operation: Reassemble the unit, ensure good airflow around it, and run a short test cycle while monitoring for abnormal smells or noises.

Warning: Never bypass or short the thermal fuse. Doing so removes a critical safety layer and can result in fire.