LG LSC27926 Service Manual page 21

MICOM FUNCTION
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 nished 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 nishing 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.
M o d e O p r e
Test 1 Press test button once
(strong cold mode)
Test 2 Press test button once at
the test mode 1 status
(forced defrost mode)
Normal Press test button once at
Status the test mode 2 status
t a o i n
1. Continuous operation of compressor
2. Continuous operation of freezing bldc motor
(high-speed RPM) and cooling bldc motor
3. Defrost heater turns o
4. Stepping motor damper is completely opened
(open of ba e)
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 o
3. Defrost heater turns on
4. Stepping motor damper is completely closed
(closing of ba e)
5. OptiChil stepping motor damper is completely
closed.
6. All display LEDs or LCD graphics turn o .
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.
TEST MODE1 STATUS DISPLAY
°
C
°F
TEST MODE2 STATUS DISPLAY
C o n e t n s t
- 2 1 -
R e m r a s k
Freezing fan turns o in
door opening.
Return to the normal mode
when the defrost sensor is
above +5 °C
Compressor will operate
after delay for 7 minutes