Led Blinking Frequency Depending On Protecting Functions - Samsung RF263BEAE** Service Manual

troublesHooting

4-2-17. 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

LED blinking frequency depending on protecting functions

If the same blinking, After 5 minutes, Follow the Remarks
Protecting Functions
Normal Operation
Starting Failure
1. Short between COMP U,V, and W phase(CN04)
2. Short among IPM Pins(No. #1 ~ 26)
3. Drop the IPM operating Voltage under DC 13.5V
4. Other cases, check the COMP, cycle, etc.
SPM Fault
1. Open the COMP wire(CN04)
Abnormal Current
2. Bad condition of R1(ex. Bad soldering.)
Detection
3. Other cases, check the COMP, cycle, etc.
1. Operating the locked rotor COMP within 5 second.
2. Operating the COMP under 1000 RPM more than 5 second.
Motor Locked /
3. Short the shunt resistor(R1) between leads.
Over RPM
4. Occur the huge change of input voltage in a moment.
5. Other cases, check the COMP, cycle, etc.
1. Drop the input voltage under AC 53V
Under Voltage
2. Short resistor R312 (DC link resistor)
1. Increase the input voltage over AC 155V
Over Voltage
2. Short resistor among R309, R310 and R311 (DC link resistor)
92
Remarks
N/A