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Problem Possible cause Actions
The motor is not running.
• Blown fuse or circuit breaker.
• Overhead Sensor Actuated.
• Up button not functioning.
1. Replace blown fuse or reset circuit
breaker（customer side).
2.Check sensor or incorrect
connection.
3.Check UP button.
4. Contact service representative for
further assistance.
Motor runs but will not raise lift.
•Low oil level.
•Overloading lift.
1. Check and Fill tank.
2.Check vehicle weight and/or
balance vehicle weight on lift.
Lift won't lower. 1. Down button not functioning.
2. Lowering Valve not
functioning.
Contact service representative for
further assistance.
Lift going up unlevel. See actions Contact service representative for
further assistance.
Anchors will not stay tight. See actions Contact service representative for
further assistance.
Slow lifting speed or oil blowing
out ller breather cap.
See actions Contact service representative for
further assistance.
Lift slowly settles down. See actions Contact service representative for
further assistance.
5.2 Troubleshooting by authorized maintenance contractors
Problem Possible cause Actions
Motor does not run. 1. Blown fuse/circuit breaker.
2. Incorrect voltage to motor.
3. Bad wiring connections.
4. Up switch burned out.
5. Motor windings burned out.
1. Replace fuse or reset breaker.
2. Supply correct voltage to motor.
3. Repair and insulate all
connections.
4. Replace switch/control buttons.
5. Replace motor.
Motor runs but will not raise
lift.
1. Overloading lift.
2. Motor running on low voltage.
3. Debris in lowering valve.
4. Pump sucking air.
5. Suction stub off pump.
1. Check vehicle weight and/or
balance vehicle weight on lift.
2. Supply correct voltage to motor.
3. Clean lowering valve.
4. Tighten all suction line ttings.
5. Replace suction stub.
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