4-2-15) Troubleshooting Based On Led Blinking Frequency - Samsung RL60GG Series Service Manual

4. TROUBLESHOOTING

4-2-15) Troubleshooting based on LED Blinking Frequency

When the Failure Condition occurs, the Compressor will immediately stop if the Compressor is running and there will
be a 5 minute standby. During the 5 minute standby, RPM signals will be ignored.
That is, even though the Inverter PCB receives the RPM signals, the Compressor does not work.
It blinks every second and there is 2 second off at the end of each cycle.
Description
Normal Operation
Failure
IPM Fault
Location Detect
Failure
Motor Restriction
Low Voltage
Over Voltage
LED Blinking Frequency
N/A
Check if there is any short between Comp terminals.
Check IPM Voltage [lower than 13.5V].
Check any short between IPM Pins [#1~33].
Check Comp and Cycle.
Check the continuity of the following resistances for
Short/Open (R505, R506, R507, R508, R509, R510,
R511, R512, R513) Check Comp. Connector.
Check Comp and Cycle.
Check the continuity of the following resistances for
Short/Open (R505, R506, R507, R508, R509, R510,
R511, R512, R513) Check Comp and Cycle.
When the Input Voltage is under AC110V Check the
continuity of R517 for Short/Open
When the Input Voltage is higher than AC300V,
check the continuity of R514, R515 and R516 for
Short/Open
69
Remark