LG LMXS28626 Series - Compressor Troubleshooting; Simplified PCB Check

- 80-
12. Compressor Troubleshooting
PCB Check (Simplify)
Test Mode
Power Off Power On PCB OK
Replace Driver PCB
N
Y
Time>30sec
& V≒200
Con201
Disconnect
A-inverter
TEST 1 Mode
Protection Logic
Check Voltage about 200V
past 30second after turn on
Troubleshooting
N
Y
N
N
Y
Y
Y
N
N
N
Y
Y
Y
N
N
Y
Y
N
N
Not
Cooling
Y N
N
N
N
N
Y
N
Y
Recheck
LED blink 1
LED blink 7
LED blink 5
LED blink2
LED blink6
LED blink record
LED blink record
LED blink record
LED blink record
LED blink record
Reset
Reset
Reset
Reset
LED blink 1
LED blink 7
Replace Driver PCB
Comp.
Check?
Replace Driver PCB
LED blink 5
LED blink2
Heavy Repair
Heavy Repair
Comp.
Work?
Comp.
Check?
Replace Comp.
Comp.
Work?
Comp.
Check?
Harness
Check?
Leakage?
Recheck
Reset LED blink6
Heavy Repair
k c e h c e Rr i a p e R y v a e H
Replace Driver PCB
Comp.
Work?
Comp.
Check?
Refrigerant
leak ?
IPM output
>
80V-20%
Refrigerant
leak?
Recheck
Fix Harness
Comp.
Work?
Comp.
Check?
Leakage? Recheck
Reset
Check C
LED
Blink?
Ref.
Comp
FLB075(A-Inverter)
Refer
TEST1 Forced Starting TDC (Full Stroke)
Display & sound
Display ON, Buzz 1 time
Test Button