F8
Haier
NTC / Temperature Sensor Fault (Alternate Code)
Dishwasher shows F8; 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: Find the Haier NTC in the sump or base. Disconnect its connector.
- 2. Measure resistance: Use a multimeter to check resistance at room temperature. Compare to specifications; a reading far outside 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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