Safety first: Unplug the unit and wait for internal components to discharge. Work on a non‑conductive surface.

Confirm symptom: Start a cooking program and listen for the characteristic relay click (with covers on). If there is no click and E8 appears, suspect the relay drive.
Access PCB: Remove the housing to expose the main control PCB. Identify the heater relay (a small rectangular block) or triac (three‑legged device on a heatsink).
Inspect solder joints: Flip the PCB and check for dull, cracked, or ringed solder joints under the relay or triac. Reflow with fresh solder if you are experienced.
Check relay coil: With the unit unplugged and relay removed or isolated, measure coil resistance. An open coil indicates a bad relay; replace with the same type and rating.
Replace PCB if needed: If you cannot source the exact relay/triac or are not comfortable with soldering, replace the entire main control PCB.

Warning: Incorrect replacement of power components can cause arcing and fire. If unsure, use professional service.

Display shows E8 and the air fryer will not heat, though the fan may still run.

Possible Causes