1. The ambient temperature of the air compressor is too high. Solution: Install air duct exhaust equipment on the air compressor;
2. The three-phase voltage of the air compressor is unstable, phase-less, and the voltage is too low (less than 10%). Solution: Please improve the power system of the factory;
3. The temperature controller of the air compressor motor fails. Solution: Replace the temperature controller of the air compressor;
4. The overload protector of the air compressor fails. Solution: Replace the overload protector of the air compressor;
5. The contact of the starter of the air compressor is poor. Solution: Maintain the contact of the starter of the air compressor;
6. The oil-gas separator of the air compressor is blocked. Solution: When the pressure difference of the air compressor is greater than 0.8-1kg, the oil-gas separator should be replaced;
7. The bearing of the air compressor motor is not filled with oil. Solution: Add butter to the motor bearing;
8. The bearing of the air compressor motor is damaged. Solution: Replace the motor bearing;
9. The air compressor motor has poor insulation. Solution: Remove the motor and do insulation reinforcement;
10. The air compressor motor wiring is loose. Solution: Re-tighten the motor wiring;
11. The air compressor air inlet is blocked. Solution: Clean and maintain the air compressor air inlet;
12. The air compressor air filter is blocked. Solution: Replace the air filter.