When the air compressor restarts, the voltage is low and it does not start. What's the matter?

The problem that the air compressor does not start due to low voltage during restart may be caused by a variety of factors. Here are some possible causes and solutions:

possible reasons

1. supply voltage too low:
   • the air compressor needs a stable voltage supply to start normally. If the power supply voltage is too low, the motor may not operate normally, causing the air compressor to fail to start.
2. Power cord connection problem:
   • poor connection, looseness or damage of the power cord may cause the current to fail to flow normally, thus affecting the start of the air compressor.
3. BURNED FUSE:
   • the fuse plays a protective role in the circuit. If there is an abnormal situation such as a short circuit or overload in the circuit, the fuse may be burned, causing the circuit to be disconnected and the air compressor cannot be started.
4. Motor fault:
   • the damage of the starting capacitor of the motor, the burning of the motor winding or the damage of the motor bearing may cause the air compressor to fail to start.
5. Control system fault:
   • the control system of the air compressor is responsible for monitoring and regulating its operating status. If the control system fails, such as the circuit board cable falling off, the contactor is damaged, etc., it may cause the air compressor to fail to start.
6. Equipment aging:
   • long-term use of air compressor equipment may cause the voltage to be too low or unable to start due to component wear.

Solution

1. check supply voltage:
   • use a voltmeter to measure the power supply voltage to ensure that the power supply voltage meets the requirements of the air compressor. If the power supply voltage is too low, contact the power department to check and solve it.
2. Check power cord connection:
   • make sure that the power cord is firmly connected and there is no looseness or damage. If the power cord is found to be poorly connected or damaged, it should be replaced in time.
3. Replace fuse:
   • if the fuse is burnt out, replace it with a new fuse immediately, and check whether there are abnormal conditions such as short circuit or overload in the circuit.
4. Check motor:
   • check whether the starting capacitor of the motor is damaged, whether the motor winding is burned, whether the motor bearing is damaged, etc. If there is any problem, it should be replaced or repaired in time.
5. Check the control system:
   • check the electrical control system, including circuit boards, contactors, etc. If there is a fault, it should be repaired or replaced with new parts.
6. Equipment maintenance and maintenance:
   • regularly maintain and maintain the air compressor, including cleaning the air filter, checking the electrical control system, and checking the transmission system. In this way, problems can be found and solved in time to avoid production stoppages caused by failures.
7. Contact professional maintenance personnel:
   • if none of the above methods can solve the problem, it is recommended to contact professional maintenance personnel for inspection and repair. Air compressor is a kind of high precision equipment, which needs professional training and authorization to repair.

In summary, the problem that the low voltage causes the air compressor to restart may be caused by a variety of factors. In troubleshooting, should be a systematic and comprehensive inspection of each possible point of failure, and take appropriate solutions to deal.