E9
Haier
Motor Tachometer / Speed Sensor Error
Washer displays E9; drum speed feedback is abnormal or spin cannot be controlled.
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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
Loose tachometer connector, Damaged tach sensor on motor, Broken motor magnet ring, Faulty main PCB speed control circuit
How to Fix / Troubleshooting
Safety first: Unplug the washer and wait several minutes for capacitors to discharge.
- Access the motor: Remove the rear panel to expose the drive motor and belt (if belt-driven).
- Inspect tach sensor: On the rear of the motor, locate the tachometer sensor and its wiring connector. Ensure the connector is fully seated and wires are not damaged.
- Check magnet ring: Inspect the rotor or tach magnet ring for cracks or missing segments. Replace the motor or rotor if damaged.
- Test sensor: Use a multimeter to measure sensor resistance and, if possible, generate a small AC voltage by spinning the motor shaft by hand. Replace the tach sensor or motor assembly if readings are out of spec.
- If E9 persists with a known-good motor: The main PCB may not be processing speed feedback correctly and may need replacement.
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Repair Difficulty
Hard
4/5
Required Part
Motor Tachometer Sensor / Drive Motor
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