Coaire SCROLL CSOF-M3PL/H12 - Troubleshooting Guide; Unable to Start Motor Troubleshooting

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Unable to start
motor
Lead-in wiring is
disconnected
- Check the resistance of incoming
line
- Test wiring and cable capacity, and
replace the cable, if necessary
Yes
No
9-2-3 Unable to Start Motor
Failure of
magnetic switch
- Test wiring
- Check the contact and operation,
and replace the switch, if necessary
Yes
Failure of motor
Check the error message
on the controller
- Take necessary action to correct the
error
- Check the tripping error
No
Yes
- Test wiring and resistance
- Manually turn to check the bearing
- Replace the motor, if necessary
Yes
No
Failure of
compressor
No
- Manually turn to check the rotation
- Request a service if it is defective
Failure of
controller
- Check the output signal of the
magnetic switch
- Turn the main power off, and then
on
Yes
Yes
No
Start-Up
Request a service
No
1) An air compressor is automatically operated. Take necessary safety precaution to ensure that the
compressor is not unintentionally operated during the maintenance.
2) Make sure to turn the main power off prior to the rotation test.
3) Make sure to turn the main power off prior to the wiring test, except for the measurement of the
voltage.
Danger
After eliminating the cause
TROUBLESHOOTING