F8
Haier NTC / Temperature Sensor Fault (Alternate Code)

Dishwasher displays F8; the unit may not heat or may overheat water.

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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

Open or shorted NTC sensor, Loose sensor connector, Damaged harness, Faulty control board temperature circuit

How to Fix / Troubleshooting

Safety first: Turn off power before accessing the sump or base.

  • 1. Locate NTC sensor: Locate the Haier NTC sensor in the sump or base. Disconnect its connector.
  • 2. Measure resistance: Use a multimeter to check its resistance at room temperature. Compare to specifications; a reading far outside the expected range indicates failure.
  • 3. Inspect connector and wiring: Look for corrosion, moisture, or broken wires. Repair or replace as needed.
  • 4. Replace NTC: If faulty, install a new sensor and ensure the seal is watertight.
  • 5. Control board check: If a new sensor does not clear F8, the main PCB may be defective and require replacement.

Warning: Overheating can damage dishes and plastic components; do not bypass temperature sensing.

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Repair Difficulty

Medium 3/5

Required Part

NTC Temperature Sensor
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