Test Mode - LG LFCS22520 series Service Manual

13-1-11 TEST Mode

1. The test mode allows checking the PCB and the function of the product as well as finding out the defective part in case of
an error.
2. The test mode is operated by pressing test button at main PCB conttroller.
3. While in the test mode, the function control button is not recognized, but the recognition tone (beep~) sounds.
4. After exiting the test mode, be sure to reset by unplugging and then plugging in the appliance.
5. If an error, such as a sensor failure, is detected while in the test mode, the test mode is cleared and the error code is
displayed.
6. While an error code is displayed, the test mode will not be activated.
MODE MANIPULATION
Push Test S/W(in the
TEST1
main Board) once.
Push Test S/W(in the
TEST2 main Board) once in
TEST MODE 1.
Push Test S/W(in the
TEST3 main Board) once in
TEST MODE 2.
Push Test S/W(in the
RESET main Board) once in
TEST MODE 3.
*
Freezer Fan Variable RPM Check:
,
To check he ariable pm t v r
.
s etting
*
Demonstration (Display) MODE:
,
1. To enter his t m ode p ress nd old Refrigerator Temp button and Ice Plus button or 5 econds
2. The LED panels will display OFF, to indicate that the compressor, circulating fan, damper, and defrost heater are not
operating.
3. The open door alarm and the LED auto-off feature will work normally and can be demonstrated.
4. To reset o ormal peration t n o
CONTENTS
1) Continuous operation of the
COMPRESSOR and the
FREEZER/ Refrigerator fan.
2) Stepping DAMPER OPEN.
3) Defrosting HEATER OFF.
4) DISPLAYED LED all ON.
1) Continuous operation of the
COMPRESSOR and the
FREEZER/ Refrigerator fan.
2) Stepping DAMPER CLOSE.
3) Defrosting HEATER OFF.
4) DISPLAYED LED shows no.2
1) COMPRESSOR and the
FREEZER/ Refrigerator fan OFF.
2) Stepping DAMPER CLOSE.
3) Defrosting HEATER ON.
4) DISPLAYED LED shows no.3
Reset to the prevoiusly setting
before TEST MODE.
p ress he Ice Plus button or TEST1 button t
a h
,
p ress nd old Refrigerator Temp button and Ice Plus button or 5 econds a h
REMARKS
Reset if the Temperature
of the Defrosting Sensor is
46°F (8°C) or more.
The compressor will start
after a 7-minute delay.
.
T he an peed f s w c
f
60
ill hange o igher han riginal t h t o
.
s
.
f s