Common faults and solutions for screw air compressors

Common faults and solutions of screw air compressors1)Unable to start the machine1: Voltage is too low, voltage protection limitSolution: Add a voltage stabilizer or transformer to make the voltage reach the specified requirements2: The phase sequence of the power supply is incorrectSolution: Electrical personnel inspect and replace the wires3: The start button has poor contactSolution: Electrical personnel inspect and replace4: The emergency stop button is not resetSolution: Reset5: Motor failureSolution: Replace or repair the motor6: Air compressor host failureSolution: Turn the rotor by hand. If it does not move, replace the host7: Electrical circuit failureSolution: Check the power cord and each node

2)Low unit pressure

1: Actual gas consumption is greater than the unit output gas volume

Handling method: Reselect or add units

2: Vent valve failure (cannot be closed when loaded)

Handling method: Repair or replace the vent valve

3: Intake valve failure, cannot be fully opened

Handling method: Repair, clean, lubricate or replace the intake valve

4: User pipeline leaks

Handling method: Maintenance

5: Minimum pressure valve stuck

Handling method: Clean, readjust or replace with new parts

6: Air filter clogged

Handling method: Replace the air filter

7: Pressure sensor failure

Handling method: Replace the pressure sensor

8: Oil separator core clogged

Handling method: Replace the oil separator core

3)The unit consumes a lot of oil or the compressed air contains a lot of oil

1: Too much lubricating oil

Solution: Drain the oil to the appropriate position

2: The return oil pipe is blocked

Solution: Clear the blockage

3: The installation of the return oil pipe does not meet the requirements

Solution: Replace the new oil suction pipe

4: The exhaust pressure is too low when the unit is running

Solution: Increase the internal pressure of the exhaust

5: Oil separator core quality problem

Solution: Replace the oil separator core

6: The oil separator core is broken

Solution: Replace the oil separator core

7: The internal partition of the separation cylinder is damaged

Solution: Replace the gas tank

8: The unit has oil leakage

Solution: Maintenance

9: The lubricating oil is deteriorated or used beyond the expiration date

Solution: Replace the lubricating oil

10: The exhaust temperature is too low

Solution: Increase the exhaust temperature to about 85°

4)The exhaust temperature of the unit is high (over 100℃)

1: The lubricating oil level of the unit is too low

Handling method: Add lubricating oil to the specified position

2: The outside of the oil cooler is dirty

Handling method: Clean the fins of the cooler

3: The inside of the oil cooler is dirty

Handling method: Use a special cleaning agent to clean it

4: Temperature control valve failure (component failure)

Handling method: Clean or replace the component

5: Fan motor failure

Handling method: Repair or replace the motor

6: Cooling fan damage

Handling method: Replace the fan

7: The exhaust duct is blocked or the exhaust resistance (back pressure) is large

Handling method: Clean the exhaust fan duct

8: The oil filter element is blocked

Handling method: Replace the oil filter

9: The ambient temperature exceeds the specified range

Handling method: Lower the ambient temperature and increase the exhaust

10: Temperature sensor failure

Handling method: Replace the temperature sensor

11: The wire is loose

Handling method: Repair the wire