Sharp Extended Cycle Due to Heating or Sensor Issues

Dishwasher runs for an unusually long time or never seems to finish the 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

Water not heating properly, Faulty NTC sensor causing incorrect temperature reading, Low inlet water temperature, Turbidity sensor misreading dirty water

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing internal components.

  • Check heating: During a hot program, open the door after 20–30 minutes to see if the interior is hot. If not, investigate heater and NTC faults.
  • Use hot inlet water: If connected to cold water, consider connecting to a hot supply within Sharp's specified temperature range.
  • Clean sensors and sump: Clean the sump and turbidity sensor window to ensure accurate readings.
  • Reset machine: Power-cycle the dishwasher to clear any temporary software glitches.
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Repair Difficulty

Medium 3/5

Required Part

NTC Temperature Sensor
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