Compressor
Protection Logic
Y
N
12-1 Check B
B1. LED blinks once, then repeats (FCT0 Fault: A-Inverter)
- Purpose: Detecting motor current and voltage error
- Check voltage at point A (Motor Voltage), point B (Motor Current) and Point C (Capacitor
Voltage) when compressor is off.
- Spec: Points A, B, & C 2.5V 0.3V
Protection
logic
Check B
Blink 1 time
(FCT 0) Check
B1
Out of spec?
(2.2 - 2.8V)
Reset Power
Replace Driver
PCB
A
B
C
GND
Caution
hould not be short-
circuited during check C
: Devices s
B2. LED blinks two times, then repeats (Stroke Trip)
- Purpose: Prevent abnormally long piston strokes.
- Case 1. If compressor doesn’t work and LED blinks - Cause: Possibly harness from compressor to PCB might be defective.
- Case 2. If compressor works intermittently and LED blinks - Cause: Condenser Fan or Freezer Fan is not running. Sealed
system problem such as moisture restriction, restriction at capillary tube or refrigerant leak.
- Logic: Compressor is forced to off and then tries to restart after 1 minute.
Blink Blink OFF Blink Blink OFF
Blink OFF Blink OFF
Y
Y
Y
Y
Y
Y
N
N
N
N
N
OK
NG
Protection
logic
Check B
Blink 2 times
(Stroke Trip) Check B2
Compressor
doesn’t work
Fix Harness
Harness
Connecting
Check C
Replace
Driver PCB
Fix
Cycle
Cycle
Check E
Repeat
check procedure
Compressor
works
intermittently
Capacitor
spec.
Check C
Replace
capacitor
Replace
compressor
Stroke trip
occur?
Reset
power
Compressor
Damage
Check C
Содержание LSXC22326
Страница 9: ...Circuit Diagram ...
Страница 25: ...Micom Circuit description ...
Страница 31: ...Compressor ...
Страница 33: ...Compressor ...
Страница 34: ...Compressor ...
Страница 35: ...Compressor ...
Страница 50: ...Troubleshooting ...
Страница 52: ...Troubleshooting ...
Страница 54: ...Troubleshooting ...
Страница 55: ...Troubleshooting 2 9 Communication Error CO E ...
Страница 73: ...FREEZER DOOR 201A 280A 405H 282G 244A 200A 131C 600A 612A 606A 241G 131D 203A 113F 113E EV EXPLODED VIEW EV ...
Страница 74: ...REFRIGERATOR DOOR EV EV 241B 241A 233A 212G 231A 231B 230A 244F 212K 212K 212J 241D 241H 241F 271D ...
Страница 78: ...August 2014 MFL62215930 ...