LG MC-804AR Service Manual page 26

Microwave/grill convection oven
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(TROUBLE 5) Oven does not operating Grill cooking
CONDITION
Grill indicator lights
but oven does not go into
cook cycle when START key
is touched.
Temperature in the oven
cavity is lower or higher then
preset.
NOTE : • MAKE SURE THE WIRE LEADS CORRECT POSITION.
• WHEN REMOVING THE WIRE LEADS FROM THE PARTS, BE SURE TO GRASP THE CONNECTOR,
AND NOT THE WIRES.
• WHEN REMOVING THE MAGNETRON, BE SURE TO INSTALL THE MAGNETRON GASKET IN THE
CORRECT POSITION AND GOOD CONDITION.
CAUSE
Defective relay 3 of P.C.B.
Open or loose wire
connection to the above
components.
Open or loose wire
connection to P.C.B.
Defective relay 3 of P.C.B.
Defective grill heater
element.
5-19
TEST PROCEDURE OR
CORRECTION
Test procedure relay 3 of
P.C.B.
Check and repair wiring.
Check and repair wiring.
Test procedure relay 3 of
P.C.B.
Test procedure grill heater.

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