Service manual

3-3. DOOR S/W

1) The working principle of Door S/W

① Door Locking

Bimetal on (3 sec) --> solenoid (supply 20msec pulse 2 times)

② Door Unlocking

Bimetal off --> solenoid(supply 20msec pulse, until lock)

③ After door locking all parts can work nomally.

④ After pressing power button, if the temperature of wash thermistor is over 55℃ or the water level is

over the safety level, the door will be locked.

⑤ The door will be unlocked immediately after all processes are finished.

⑥ The door can be opened during processing if there is no problem to unlock.

2) DOOR OPEN SYSTEM

① If add the laundry during washing, press the door unlock button.

② Door open sequence at abnormal condition.

3-4. Child Lock

① Press the "Spin" and "Condensing Dry" button simultaneously during processing.

② Under the Child Lock function, only power button is working.

③ During Child Lock function, CHL will be displayed on '18:88'

④ In order to unlock Child Lock mode, press "Spin" and "Condensing Dry" simultaneously.

3-5. The sequence of drain

① If the checking time to reset point is below 1 min, the remaining drain time is 30 sec.

② If the checking time to reset point is over 1 min, the remaining drain time is 2 min.

③ If the checking time to reset point is over 10 min, OE signal will be appeared on PCB.

④ If the temperature is over 50℃ , the water will be supplied to high water level, then the drain will

start.