Fault analysis and troubleshooting
|
Fault Characteristics |
Cause of Failure |
Fault Identification and Troubleshooting Methods |
|
Motor not turning |
1. Power outage |
1. Check the power supply |
|
2. Improper handling of the fan causing the fan blades to jam |
2. Repair the fan duct |
|
|
Low ventilation volume |
Power connected in reverse |
Check motor wiring |
|
Reduced airflow |
1. Reduced speed |
1. Check the power voltage |
|
2. Air inlet blockage |
2. Clear the air inlet |
|
|
3. Air duct leakage |
3. Repair or replace the air duct |
|
|
Reduced air pressure |
1. The density of the transported gas is too high |
1. Observe and adjust the transported gas |
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2. Impeller deformation or damage |
2. Replace the damaged impeller |
|
|
Vibration |
1. Unstable, sunken or deformed foundation |
1. Repair and reinforce the foundation |
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2. Main shaft bending or deformation |
2. Replace the main shaft |
|
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3. Rotor imbalance |
3. Dynamic balance the rotor or replace it |
|
|
4. Pipeline vibration |
4. Secure the pipeline or adjust the piping |
|
|
High bearing temperature |
1. Bearing damage |
1. Replace the bearing |
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2. Incorrect selection of lubricating grease |
2. Re-select and replace the appropriate oil |
|
|
3. Rotor vibration |
3. Balance the rotor |
|
|
High noise |
1. Fan impeller wear |
1. Replace the fan impeller |
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2. Air inlet damage |
2. Repair the air inlet |
|
|
Low motor insulation resistance |
1. Damp coil |
1. Dry the coil |
|
2. Insulation damage or aging |
2. Replace the coil |
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