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TROUBLESHOOTING
4-2-19. LED blinking frequency depending on protecting functions
If Failure Condition is detected during compressor is operating, immediately stop Compressor operating and stand
by 5 minutes. During this 5 minutes, RPM command signal is not available. It means, even if available RPM
command signal is applied to the compressor, it does not work and keep standing by.
Blinking time is 1 second and dwell time is 2 seconds.
LED blinking frequency depending on protecting functions
LED Blinking Frequency
Protecting Functions
Normal Operation
Starting Failure
SPM Fault
Detecting Position Failure
Motor Locked / Over RPM
Under Voltage
Over Voltage
Remarks
N/A
Check the Inverter PCB.
Check the Inverter PCB, COMP, Cycle.
Check the COMP, Cycle, Inverter PCB.
Check the COMP.
Check the Input Voltage.
Check the Input Voltage.
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