Err
T-fal General System Error / Undefined Fault

Display shows ERR or Error and beeps; unit will not start or stops mid-cycle.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Transient control board glitch, Loose internal connector, Sensor reading out of range, Early-stage control board failure

How to Fix / Troubleshooting

Safety first: Unplug the air fryer before opening any covers.

Basic troubleshooting:

  • Unplug the unit for 10–15 minutes to perform a hard reset.
  • Plug back in and try a simple manual mode at a moderate temperature.
  • If ERR appears immediately, proceed to internal checks.

Internal checks:

  • Remove the housing and inspect all wiring harnesses between the NTC sensor, heater, fan motor, and control board.
  • Reseat all connectors firmly; look for bent pins or corrosion.
  • Inspect the control board for any obvious damage or loose components.

If no specific component fault is found and ERR persists, the main control board is likely defective and should be replaced with a compatible T-fal board.

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Repair Difficulty

Medium 3/5

Required Part

Main Control Board
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