Air fryer powers on but does not heat; fan runs and timer counts down but food remains cold.

Safety first: Unplug the unit and allow it to cool completely.

• Step 1 – Confirm symptom: Set the air fryer to a high temperature (e.g., 400°F) and start a cycle. If after 3–5 minutes the interior is still cool and the fan is running, the heater circuit is suspect.
• Step 2 – Access heater assembly: Remove the outer cover to expose the upper heating element and associated wiring.
• Step 3 – Inspect connections: Check for loose or burned connectors at the element, thermal fuse, and thermostat. Tighten or replace any damaged terminals.
• Step 4 – Test continuity: With a multimeter, test the heating element and thermal fuse for continuity. Replace any open components with Cuisinart-compatible parts.
• Step 5 – Control board check: If all heater components test good, the heater relay on the main control board may not be energizing. Replace the board if necessary.