LG LRSC26980TT Service Manual - Page 27

MICOM FUNCTION 2-15. Sequential operation of components Electromechanical parts of the appliance, such as the compressor, defrost heater, freezer fan, cooling fan, and damper motor, are operated sequentially as shown in the chart below to prevent noise and circuit overload from everything starting at once. Function When temperature of a defrost sensor becomes more than 45°C (initial setup, movement) POWER 0.3 sec. ON Load Operation Sequence COMP ON 0.3 F-FAN sec. & C-FAN ON 0.3 sec. R-STEP MOTOR DAMPER ON 0.3 sec. OPTICHILL STEP DAMPER MOTOR ON Remark If error occurs during operation, initial operation is not done. In applying Initial power When temperature of a defrost sensor becomes less than 45°C (power failure, service) POWER 0.3 sec. DEFROST HEATER 0.3 sec. DEFROST HEATER ON ON OFF 6.0 DAMPER 0.3 DAMPER sec. & sec. & DUCT DOOR DUCT DOOR & OPTICHILL & OPTICHILL HEATER ON HEATER OFF Sequence of load operation when closing freezer and refrigerator. 0.3 PIPE sec. & DISP' HEATER ON 0.3 PIPE 0.3 sec. & sec. DISP' HEATER OFF COMP ON 0.3 sec. F-FAN & C-FAN ON 0.3 sec. R-STEP 0.3 OPTICHILL sec. STEP MOTOR DAMPER DAMPER MOTOR ON ON TEST MODE Test mode 1 (Compulsory function) Test mode 2 (Compulsory defrost) TEST SWITCH (PRESS Once) TEST SWITCH (PRESS 2 Times) OTHER LOAD OFF 0.3 sec. COMP ON 0.3 sec. F-FAN & C-FAN ON 0.3 sec. R-STEP MOTOR DAMPER ON OPTICHILL 0.3 sec. STEP DAMPER MOTOR CLOSE COMP 0.3 sec. F-FAN & 0.3 FROST 0.3 sec. REMOVAL sec. R-STEP MOTOR OFF C-FAN OFF HEATER ON DAMPER CLOSE The refrigerator will return to normal operation if you press the test switch once again while in Test Mode 2 or if the temperature of the defrost sensor surpasses 41°F (5°C). The compressor will run after the 7minute delay. - 27 -