| Compressor Will Not Start | - No power
- Fuse blown in control circuit
- Motor overloads not tripped or nor reset
- Loose incoming or power connection wires
- Low voltage to unit
- Faulty temperature switch
- Temperature switch tripped
- High pressure switch tripped
| - Check power supply for adequate voltage
- Check fuses
- Make sure all power wires are tight at connections
- Check voltage supply to make sure it is high enough to run the electric system
- Check temperature switch for proper operation
- Check system pressure
|
| Unit starts-them immediately stalls | - Pressure switch out of adjustment
- Temperature switch activated
- Loose electrical supply wires
- Motor overloads tripped
- Low voltage
- Incorrect compressor rotation
| - Check compressor power supply for adequate breaker and wire size
- Inspect check valve for proper operation
- Tighten belts
- Check compressor for proper oil level
|
| Low Discharge Pressure | - Plugged separator
- Plugged oil cooler
- Improper pressure switch setting
- Low incoming power voltage
- Electrical phase imbalance
- Possible airend or motor failure
| - Tighten compressor belts to recommended specifications
- Check compressor voltage supply
|
| Compressor does not build up to pressure | - Air leaks in shop
- Inlet valve malfunction
- Compressor belts slipping
- Air demand exceeds compressor output
- Pressure switch set to low
- Solenoid valve malfunction
- Compressor rotors damaged
| - Find and fix shop air leaks
- Check inlet valve for proper function
- Check air usage requirements on machinery and check for shop air leaks
- Check pressure switch for proper setting
- Check solenoid for proper function
|
| Compressor will not load to compress air | - Pressure switch set to high
- Inlet valve malfunction
- Faulty solenoid
| - Check pressure switch for proper setting
- Check inlet valve for proper function
- Check solenoid for proper function
|
| cfm Flow (air flow) seems low | - Restricted air intake filter
- Inlet valve partially closed
- Air pressure set to high
- Insufficient oil flow
- Solenoid valve malfunction
| |
| Excessive oil consumption | - Over filled sump
- Broken oil line
- Plugged oil return line
- Damaged or dirty separator
- Excessive unloaded compressor run time
| - Check sump for proper oil level
- Check all lines for cracks
- Replace separator
- Add a timer to the system
|
| High temperature shutdown | - High ambient air temperature around compressor
- Low oil level in compressor
- Plugged oil filter
- Restricted air flow over cooler
- Thermal by pass leaking
- Faulty temperature switch
| - Lower ambient temperature around compressor
- Check unit for proper oil level
- Replace oil filter
- Clean oil cooler
- Check thermal bypass for proper operation
- Check temperature switch for proper operation.
|
| High amperage draw | - Restricted air intake filter
- Inlet valve partially closed
- Air pressure set to high
- Insufficient oil flow
- Solenoid valve malfunction
| - Change separator
- Clean oil cooler
- Check pressure switch
- Check incoming voltage
- Check air end and motor for proper function
|
Leave a Reply
Want to join the discussion?Feel free to contribute!