LG LBC24360ST Service Manual - Page 43

11. COMPRESSOR TROUBLESHOOTING PCB Check (Simplify) A-inverter Power Off Con201 Disconnect Test Button TEST 1 Mode Protection Logic Power On Time>30sec Y PCB OK & V≒200 N Replace Driver PCB Check Voltage about 200V past 30second after turn on Test Mode Ref. TEST1 Forced Starting Comp FC75(A-Inverter) TDC (Full Stroke) Display & sound Display ON, Buzz 1 time Refer Troubleshooting Not Cooling Recheck Reset LED Y Blink? N LED blink 1 LED blink 7 LED blink 5 LED blink2 Check C LED blink6 Reset Reset LED blink 1 LED blink 7 Comp. Y Check? N Replace Driver PCB Replace Driver PCB Reset LED blink 5 Comp. N Work? Comp. N Check? Replace Comp. Heavy Repair Y Y Leakage? N Recheck Reset LED blink2 Comp. N Work? Harness Y Check? Y N Fix Harness Heavy Repair Y Refrigerant N leak? Recheck Comp. N Check? Reset LED blink6 Comp. N Work? Y Y N Heavy Repair Leakage? Comp. N Check? Recheck Heavy Repair Comp. N Work? Y Y Refrigerant N leak ? 43 IPM output > 80V-20% Y Recheck N Replace Driver PCB Comp. N Check?