Air fryer makes a clicking sound repeatedly but does not start heating.

Safety first: Unplug the unit before internal inspection. Repeated clicking indicates the relay is trying to switch but failing to maintain contact.

Steps to troubleshoot clicking without heat:

• Check outlet: Try a different outlet on a dedicated circuit to rule out low voltage.
• Inspect heater wiring: Remove the bottom cover and check all heater connections for tightness and signs of overheating.
• Examine control board: Look at the heater relay on the control PCB. If it is discolored or cracked, replace the main control PCB.
• Test heater: Verify that the heating element is not shorted or open, as described in the no-heat scenario. An abnormal load can cause relay chatter.

If clicking persists after wiring and board replacement, have a professional check your household voltage stability.