Electric hoists are critical for lifting and handling heavy loads, but operators often encounter issues where the hoist fails to start despite being powered on. Beijing LieYing Group, a leading electric hoist manufacturer, highlights common reasons behind this problem and offers practical troubleshooting steps.
1. Power Supply Issues
Cause: A stable power supply is essential for electric hoist operation. Voltage fluctuations, faulty sockets, or disconnected wiring can prevent startup.
Solution:
Check the power source for stability (e.g., ensure voltage matches the hoist’s specifications).
Inspect cables, plugs, and circuit breakers for damage or loose connections.
2. Motor Malfunction
Cause: The motor is the hoist’s core component. Damage due to wear, overheating, or electrical faults can disable startup.
Solution:
Listen for unusual noises or smell burning plastic, which may indicate motor failure.
Consult a professional to test motor functionality or replace it if damaged.
3. Control System Failure
Cause: Faults in the control panel, switches, or circuitry disrupt signals to the motor, preventing startup.
Solution:
Verify the control buttons and switches are functioning.
Inspect wiring and circuit boards for corrosion or short circuits.
4. Overload Protection Triggered
Cause: Hoists are equipped with overload sensors to prevent damage. Exceeding the rated capacity may lock the system until the load is reduced.
Solution:
Ensure the load is within the hoist’s capacity range.
Reset the overload protection after removing excess weight.
5. Mechanical Failures
Cause: Issues in gears, chains, or brakes (e.g., jammed components, worn parts) can block movement and startup.
Solution:
Inspect mechanical parts for blockages, corrosion, or wear.
Lubricate moving parts and replace damaged components.
When to Seek Professional Help
If troubleshooting steps fail to resolve the issue, contact certified technicians from manufacturers like Beijing LieYing Group . Unaddressed faults may escalate risks of equipment damage or workplace accidents.
Electric hoist startup failures often stem from power, motor, control, overload, or mechanical issues. Regular maintenance and prompt inspections can prevent downtime. Prioritize safety by addressing faults early or seeking expert assistance.