Compressor - Troubleshooting of compressor and solution

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COMPRESSOR - TROUBLESHOOTING OF THE COMPRESSOR AND SOLUTION

1). THE COMPRESSOR WILL NOT START:

CAUSE:

• Power failure.
• Activation of main protection and activation of motor protection.
• Temperature indicator or temperature tranducer fault.
• Temperature indicator (micro processor controller) Activated. Because temperature is too high.
• Ambient temperature too low.

SOLUTION:

• Check for supply voltage in the power supply terminals.
• Check the protection, replace or switch ON.
• Check replace if damaged.
• Check:

      - oil level and top it up if necessary.

      - remove causes of insufficient cooling.

      - thermostat - if faulty to replace the entire thermostat or its cartridge.

• Heat the room upto reach atleast +5°c.

2). DIFFICULT COMPRESSORS START:

CAUSE:

• Supply voltage too low.
• Ambient temperature too low.
• Non return valve fault.

SOLUTION:

• Check supply voltage bring it to correct value.
• Heat the room upto reach atleast 5°C.
• Call the service.

3). WRONG ROTATION DIRECTION:

CAUSE:

• Wrong phase sequence.

SOLUTION:

• Swap two phase leads in the compressor terminal block or electric cabinet.

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4). OIL TEMPERATURE TOO HIGH COMPRESSOR DOES NOT START:

CAUSE:

• Ambient temperature >40°C.
• Contaminated cooler.
• Operating pressure above the set value.
• Oil level too low.
• Oil thermostat malfunction.
• Lack of cooling water.
• Damaged temperature transducers.
• Other damage.

SOLUTION:

• Ensure adequate ventilation in the room.
• Clean the cooler (exchanger).
• Adjust the pressure switch or enter correct settings in the controller.
• Top oil up as required.
• Replace the entire thermostat or its cartridge.
• Provide water to Compressor.
• Replace with a new one.
• Call the service.

5). FORCING PRESSURE TOO LOW:

CAUSE:

• Wrong pressure switch or microprocessor controller setting.
• Insufficient Compressor capacity in relation to air requirement.
• Leak in the system.
• Air filter contaminated.
• Damaged pressure transducer.
• Damaged suction regulator.

SOLUTION:

• Adjust the pressure switch or enter the correct settings in the controller.
• Install additional source of Compressed air.
• Check the tubing for leaks, remove leaks if any.
• Change air filter cartridge (during the warranty period to be replaced obligatorily by the service staff only).
• Replace with a new one.
• Call the service staff.

6). ACTIVATION OF MOTOR PROTECTION:

CAUSE:

• Ambient temperature too high.
• Failure of one phase motor power supply.
• Supply voltage too low.
• Discharge pressure higher than specified on the name plate.
• Screw seizure.

SOLUTION:

• Improve room ventilation.
• Check motor leads, contractor and protection.
• Ensure correct supply voltage.
• Adjust the correct settings in the controller.
• Call service.

7). ACTIVATION OF SAFETY VALVE:

CAUSE:

• Safety valve damaged.
• Wrong microprocessor controller setting.
• Damaged pressure transducer.
• Damaged suction regulator.

SOLUTION:

• Replace with new one (with appropriate. setting) or call service.
• Adjust the correct settings in the controller.
• Call the service staff.
• Call the service staff.