LG LSC27914ST Owner's Manual - Page 26

1-12. Ringing of compulsory operation, compulsory frost removal buzzer 1) If pressing the test button in the main PCB, "Phi ~" sound rings. 2) In selecting compulsory operation, alarm sound is repeated and completed in the cycle of On for 0.2 second and Off for 1.8 second three times. 3) In selecting compulsory frost removal, alarm sound is repeated and completed in the cycle of On for 0.2 second , Off for 0.2 second, On for 0.2 second and Off for 1.4 second three times. 1-13. Defrosting (Removing frost) 1) Defrosting starts each time the accumulated COMPRESSOR runnig time is between 7 and 50 hours. This time is determinated by how often and how long the dorrs are opened. 2) For initial power on or for restoring power, defrosting starts when the compressor running tume reaches 4 hours. 3) Defrosting stops if the sensor tempreature reaches 41°F (5°C) or more. If the sensor doesn´t reach 41°F (5°C) in 1 hours, the defrost mode is malfunctioning. (Refer to the defect diagnosis function, 8-1-15). 4) Defrosting won´t function if its sensor is defective (wires are cut or short circuited). 1-14. Refrigerator room lamp automatically off 1) The refrigerator compartment lamp will turn on and off by refrigerator door switch. 2) If the refrigerator compartment lamp will turn off automatically if it has been on for longer than 7 minutes. 1-15. Sequential operation of built-in product Built-in components such as the compressor, defrost removal heater, freezer compartment fan, Cooling Fan and step motor damper are sequentially operated as follows to prevent noise and part damage from occurring during testing procedure. INITIAL POWER ON Function When Defrost Sensor is more than 45°C POWER ON 0.6 sec. 0.3 sec. COMP ON Load Operation F-FAN 0.3 Hi-Speed sec. & C-FAN ON DAMPER OPEN Remarks If any occurs in operation, initial power on sequence won't be performed. When Defrost Sensor is lower than 45°C 0.3 POWER sec. ON 10 15 DEF HTR sec. DEF HTR sec. ON OFF 0.6 F-FAN 0.3 sec. Hi-Speed sec. & C-FAN ON 0.3 sec. COMP ON DAMPER OPEN It is a load movement sequence in case of F/R doors closed. TEST MODE 1 TEST MODE 2 TEST SW (PRESS Once) OTHER LOADS OFF 0.6 sec. 0.3 sec. F-FAN Hi-Speed & 0.3 sec. C-FAN ON DAMPER OPEN COMP ON In case of Defrost Sensor is below than 5°C TEST SW (PRESS 2 Times) 0.3 sec. 0.6 sec. COMP OFF 0.3 F-FAN sec. & C-FAN OFF 0.3 DEF sec. HEATER ON DAMPER OPEN - 25 - If pressing S/W once more in TEST MODE 2 or defrost sensor is more than 5°C, it returns from TEST MODE to the INITIAL POWER ON mode (Compressor will operates after 7 min). TEST MODE