LG LUTE4619SN, Service Manual

Page: 38 / 110

3-17
COmpONENT ACCESS
REmOvING ThE LATCh dRIvE ASSEmBLy (For both the upper & Lower oven)
dOOR LOCkING mEChANISm
The door lock assembly is located at the back side of range.
The structural elements are as below.
1. When the oven control is programmed and started for the Self clean
and Lock out mode, PCB (Power control board) chip operates the
motor.
HOOK
Latch ROD
MOTOR
CAM
MICRO
SWITCH
2. The cam moves the door hook connected to latch rod from unlocked
position to locked position (from locked Position to unlocked position)
3. The cam activates the micro switch that causes the motor to stop.
4. The locked status remains until the range temperature drops to
approximately 500F after end of the self clean or lock out feature is
reactivated. The motor operates to unlock door at that time.
WARNING
• DISCONNECT power supply cord from the outlet
before servicing.
• Replace all panels and parts before operating.
• RECONNECT all grounding devices.
- Failure to do so can result in severe personal injury, death or
electric shock.
CAUTION
• Use caution when handling sheet metal parts
while servicing the range.
- Some parts may have sharp edges, which could result in injury.
1. Turn off the electric supply going to the range.
2. Pull the range away from the wall so that you can access the rear panel.
3. Remove the back cover. (see page 3-2 for the procedure)
4. Disconnect the wires from the latch drive motor and switch.
5. Remove the 1 mounting screw from the latch drive.
1 Screw
6. Unhook the Latch rod from the cam.