LG LSC27926, Service Manual, Page: 21 / 101

2-17. Test Function
1. The purpose of test function is to check function of the PWB and product and to search for the failure part at the failure
status.
2. Test button is placed on the main PCB of refrigerator (test switch), and the test mode will be finished after maximum 2
hours irrespective of test mode and then is reset to the normal status.
3. Function adjustment button is not perceived during performance of test mode.
4. In finishing test mode, always pull the power cord out and then plug-in it again for the normal state.
5. If nonconforming contents such as sensor failure are found during performance of test mode, release the test mode and
display the failure code.
6. Even if pressing the test button during failure code display, test mode will not be performed.
MICOM FUNCTION
- 2
1
-
Test 1
Test 2
Normal
Status
s k r a m e R s t n e t n o C n o it a r e p O e d o M
Press test button once
(strong cold mode)
Press test button once at
the test mode 1 status
(forced defrost mode)
Press test button once at
the test mode 2 status
1. Continuous operation of compressor
2. Continuous operation of freezing bldc motor
(high-speed RPM) and cooling bldc motor
3. Defrost heater turns off
4. Stepping motor damper is completely opened
(open of baffle)
5. Optichil stepping motor damper is completely
closed.
6. All display LEDs or LCD graphics turn on.
1. Compressor OFF
2. Freezing bldc motor and cooling bldc motor
turn off
3. Defrost heater turns on
4. Stepping motor damper is completely closed
(closing of baffle)
5. OptiChil stepping motor damper is completely
closed.
6. All display LEDs or LCD graphics turn off.
GR-L267BV(T)RA, GR-L267BV(T,S)PA :
Except for (A)22 (B)22 LEDs
GR-L267BV(T)R : Except for only middle
Notch Bar Graphics
Return to the initial status.
Freezing fan turns off in
door opening.
Return to the normal mode
when the defrost sensor is
above +5 °C
Compressor will operate
after delay for 7 minutes
TEST MODE1 STATUS DISPLAY
TEST MODE2 STATUS DISPLAY
°
C
°F