LG GR-J303TS Service Manual - Page 11

3-1-12. SEQUENTIAL OPERATION OF ELECTRICAL PARTS Electrical parts such as COMP, defrosting heater at the upper & middle compartment, fan motor at the upper & middle compartment, single motor damper and FRONT-C heater sequentially operate as followers for preventing noise and damage of parts occurred by that various parts operate at the same time in input of initial power on and after test closing (including temporary power failure, either): Function Operation Sequence Remarks When defrosting sensor temperature at the upper compartment is more than 45°C (In purchasing, movement) 0.5 SINGLE 0.3 POWER sec MOTOR sec ON DAMPER ON COMP ON 0.3 FRONT 10 sec -C sec HEATER ON F-FAN ON 4~5 SINGLE sec MOTOR DAMPER OFF 0.5 5~6 sec 3-WAY sec VALVE ON 3-WAY VALVE OFF 0.5 3~6 sec STEPPING sec MOTOR DAMPER ON STEPPING MOTOR DAMPER OFF In initial power on POWER ON 0.5 sec DEFROSTING 0.3 HEATER sec AT UPPER DEFROSTING 4 HEATER sec AT MIDDLE DEFROSTING 0.3 HEATER sec AT UPPER DEFROSTING 0.3 HEATER sec AT MIDDLE FRONT -C HEATER COMPARTMENT ON COMPARTMENT ON COMPARTMENT OFF COMPARTMENT OFF ON When defrosting sensor temperature at the upper compartment is less than 45°C (In power failure, service) 4 FRONT 4 SINGLE 0.3 0.3 FRONT sec -C sec MOTOR sec COMP sec -C HEATER DAMPER ON HEATER OFF ON ON 10 UPPER sec COMPARTMENT FAN ON 10~30 sec SINGLE MOTOR DAMPER OFF 0.5 5~6 sec 3-WAY sec 3-WAY VALVE VALVE ON OFF 0.5 STEPPING 3~6 STEPPING sec MOTOR sec MOTOR DAMPER DAMPER ON OFF No initial operation is done if error occurs during operation. - 11 -