E07 error appears when trying to start; unit may beep repeatedly and refuse to run.

Safety first: Unplug the unit before manipulating the basket or lid area aggressively.

• Step 1 – Reseat basket: Remove the cooking basket and reinsert it firmly until it clicks into place. Ensure it is fully seated and flush with the front of the unit.
• Step 2 – Inspect interlock tab: On many Ninja air fryers, a plastic tab on the basket or lid actuates a hidden switch. Check that this tab is not broken, bent, or worn down.
• Step 3 – Clean rails and guides: Food debris in the side rails or under the basket can prevent full insertion. Clean the rails and basket edges with a damp cloth and dry thoroughly.
• Step 4 – Test switch (advanced): With the unit unplugged and the outer shell removed, locate the basket or lid microswitch. Manually press the switch and listen for a distinct click. Check that the actuator from the basket aligns correctly with the switch.
• Step 5 – Replacement: If the switch does not click or tests open/closed incorrectly with a multimeter, it should be replaced. Do not bypass safety interlocks.