Air fryer beeps and shows E2 shortly after starting a cooking cycle.

Safety first: Unplug the air fryer and allow it to cool fully. Do not touch the heating element or internal metal surfaces while hot.

Steps to address E2:

• 1. Let the unit cool: If you were cooking at a very high temperature or with a very full basket, allow at least 20–30 minutes of cooling, then try again. Sometimes E2 is triggered by genuine overheating.
• 2. Check for blocked airflow: Ensure the rear exhaust vents and side vents are not blocked by walls, cabinets, or foil. Hamilton Beach air fryers need several inches of clearance around all sides.
• 3. Inspect the temperature sensor location: Remove the rear or bottom panel (unplugged) to access the sensor near the heater/fan assembly. Confirm the sensor probe is not touching the heating element or metal shield. If the bracket is bent, gently bend it back so the probe is close to, but not touching, the heater.
• 4. Look for melted insulation: Examine the two‑wire sensor harness for melted or charred insulation where it passes near the heater. If the wires are fused together or bare copper is visible, the sensor harness must be replaced.
• 5. Test the sensor (optional): With a multimeter, check resistance across the sensor leads at room temperature. A reading near 0 Ω indicates a shorted sensor. Replace the sensor assembly if shorted.
• 6. Inspect the control board: If the sensor and wiring are intact and properly routed, the main control board may be falsely detecting a short. Look for burn marks or damaged components near the sensor input.

Note: Continued use with an E2 error can be unsafe. If you cannot clearly identify and correct the cause, discontinue use and have the unit professionally inspected.