WM2550HVCA - LG Washing Machine Service Manual (repair manual). Page 7

2-5. THE DOOR CAN NOT BE OPENED

While program is operating.
When a power failed and power plug is taken out in operation.
While Door Lock lights turn on.
While the motor is in the process of intertial rotating, through the operation is paused.

2-6. DOOR LOCKED LAMP LIGHTS

When the frequency of water level is lower than 22.9 kHz
(It can be canceled when the frequency is more than 23.8 kHz)
When the temperature inside the tub is higher than 45℃ and water level is not 25.5 kHz
(It can be canceled when the water level is 25.5 kHz or the temperature inside the tub is lower
than 40℃)

2-7. CHILD LOCK

Use this option to prevent unwanted use of the washer. Press and hold PRE WASH button 

for 3 seconds to lock/unlock control. 

When child lock is set, CHILD LOCK lights and all buttons are disabled except the Power 

button. 

Y

ou can lock the controls of the wash while washing.

2-8. WATER CIRCULATION 

When washing and rinsing function of shower at the upper part of Gasket.

When washing, it continuously operates for 3 minutes and intermittently. 

When rinsing, it continuously operates after completion of water supply.

2-9. STEAM

For tough stained clothes, sick room linens or baby clothes. 
Steam Wash is available with Sanitary, Bulk/Large, Perm. Press, Cotton/Normal cycles.
This option features upgraded washing performance with low energy and water consumption
Do not load delicates such as wool, silk, and easily discolored clothes.