H1 or HI appears and the unit stops heating mid-cycle; exterior may feel very hot.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Unplug the air fryer and let it cool for at least 30 minutes. Do not cover the unit or place it in a confined space.
Ventilation and cleaning:
- Ensure the T-fal air fryer is used on a hard, heat-resistant surface with clear space around all vents.
- Remove the basket and clean the interior, especially the top mesh screen and around the heater and fan intake. Use a non-abrasive sponge and mild detergent; avoid soaking the interior.
- Check the rear and side vents for dust or grease buildup and clean them thoroughly.
Fan and thermostat checks (advanced):
- Listen for the fan speed during operation. If it sounds slow or labored, the convection fan motor may be failing.
- Access the heater assembly and inspect the high-limit thermostat and thermal fuse. If the thermostat is tripping prematurely, replacement may be needed.
After cleaning and ensuring proper airflow, test the unit again. If H1 recurs quickly, internal components (fan motor or thermostat) likely need replacement.
Repair Difficulty
Required Part
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