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Fault Comparison Table to Confirm The Fault
In case of any abnormal phenomenon during the operation of the air compressor, the cause of the fault must be found out immediately, the fault must be eliminated immediately, and the air compressor can not be used again until it is repaired. Do not continue to use blindly, resulting in unpredictable losses.
Air compressor troubleshooting reference table
1.The air compressor cannot be started
| Possible causes | Elimination methods and Countermeasures |
| 1. Fuse blown | Ask electrical personnel to repair and replace |
| 2. Starting electrical fault | |
| 3. Poor contact of start button | |
| 4. Poor circuit connection | |
| 5. The voltage is too low | |
| 6. Main motor fault | |
| 7. Air end failure (air end has abnormal sound, local hot) | |
| 8. Power phase loss | |
| 9. Fan motor overload |
2. When the operating current is high, the air compressor will stop automatically (main motor overheating alarm)
| 1. Voltage too low | 1. Ask electrical personnel to check |
| 2. Exhaust pressure too high | 2. Check / adjust pressure parameters |
| 3. Oil gas separator blocked | 3. Replace with new parts |
| 4. Compressor air end failure | 4. Disassembly and inspection of engine body |
| 5. Circuit fault | 5. Ask electrical personnel to check |
3. The exhaust temperature is lower than the normal requirements
| 1. Temperature control valve failure | 1. Overhaul, clean or replace the valve core |
| 2. Empty load too long | 2. Increase gas consumption or shutdown |
| 3. Exhaust temperature sensor failure | 3. Check and replace |
| 4. Compressor air end failure | 4. Cleaning and replacement |
4. If the exhaust temperature is too high, the air compressor will stop automatically (alarm for too high exhaust temperature)
| 1. Insufficient lubricating oil | 1. Check and add oil |
| 2. Incorrect specification / model of lubricating oil | 2. Replace with new oil as required |
| 3. Oil filter blocked | 3. Check and replace with new parts |
| 4. The oil cooler is blocked or the surface dirt is serious | 4. Inspection and cleaning |
| 5. Temperature sensor failure | 5. Replace with new parts |
| 6. Temperature control valve out of control | 6. Check, clean and replace new parts |
| 7. Excessive ash collection of fan and cooler | 7. Remove, clean and blow clean |
| 8. Fan motor not running | 8. Check the circuit and fan motor |
5.The oil content of exhaust gas is large
| 1. Oil gas separator damaged | 1. Replace with new parts |
| 2. The check return valve is blocked | 2. Clean the check valve |
| 3. Excessive lubricating oil | 3. Drain some cooling oil |
6. The exhaust volume of the air compressor is lower than the normal requirements
| 1. Air filter blocked | 1. Blow out impurities or replace with new parts |
| 2. Oil gas separator blocked | 2. Replace with new parts |
| 3. Air leakage of solenoid valve | 3. Clean or replace with new parts |
| 4. Air pipeline element leakage | 4. Check and repair |
| 5. Belt slipping and looseness | 5. Replace with new parts and tension belt |
| 6. The intake valve cannot be fully opened | 6. Clean and replace damaged parts |
7. Drain oil from the air filter after shutdown
| The check valve spring in the intake valve fails or the check valve sealing ring is damaged | Replace damaged components |
8.Safety valve action jet
| 1. The safety valve is used for a long time and the spring is tired | 1. Replace or reset |
| 2. Oil gas separator blocked | 2. Replace with new parts |
| 3. Pressure control failure, high working pressure | 3. Check and reset |
Elang provides the more professional air solutions.
Choosing Elang air compressor，without worries for 50 years.
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