Dash Underheating / inaccurate temperature control

Dash air fryer timer counts down but temperature never reaches the set point; food takes much longer to cook.

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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

Weak heating element, Faulty NTC temperature sensor, Grease buildup on element reducing heat transfer, Control board temperature calibration drift

How to Fix / Troubleshooting

Safety first: Unplug and cool the unit before cleaning or opening.

Step 1 – Verify temperature

  • Use an oven thermometer placed in the basket.
  • Set the air fryer to 400°F/200°C and run for 10 minutes.
  • Compare the thermometer reading to the set temperature. A large difference (more than 50°F/10–15°C) indicates a problem.

Step 2 – Clean heating area

  • Remove grease and residue from the heating element and interior walls.
  • Grease buildup can insulate the element and affect heat distribution.

Step 3 – Inspect and test components (advanced)

  • Open the housing (unplugged).
  • Test the heating element resistance; compare to specifications if available. A significantly higher resistance than normal can indicate a weak element.
  • Test the NTC temperature sensor for reasonable resistance at room temperature and check for secure mounting near the heater.

Step 4 – Replace faulty parts

  • Replace a weak or partially failed heating element.
  • If the sensor is loose or not in proper contact with its mounting point, remount or replace it.
  • If both are good but temperature remains inaccurate, the control board calibration may be off and the board should be replaced.
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Repair Difficulty

Hard 4/5

Required Part

NTC Temperature Sensor
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