LG MC-806BLR, Service Manual

Page: 26 / 36

5-16
CONDITION
Oven does not go into a
cook cycle when START key
is touched. Primary and secondary
interlock switches defective
or out of adjustment.
Test procedure primary and
secondary switches.
CAUSE
TEST PROCEDURE OR
CORRECTION
Defective flat cable of
P.C.B. Test procedure flat cable of
P.C.B.
Defective tact switch key of
P.C.B. Test procedure tact switch
key of P.C.B.
Open or loose wiring to
above components.
Check and repair wiring.
Ouput power is too low. Defective fan motor. Test procedure fan motor.
Low AC input voltage.
Use the microwave oven at
adequate line voltage.
Food temperature is too low.
This may not be a defect.
It is possible that the food
should be cooked for a
longer period.
Output is too high when you
set lower power level.
Defective relay 2 of P.C.B.
Test procedure relay 2 of
P.C.B.
High AC input voltage.
Use the microwave oven at
adequate line voltage.
Turntable motor does not
operate. Refer to preceding turntable
motor problem.
Uneven cooking.
Inconsistent intensity of
microwave by their
characteristics.
1. Wrap the thinner part with
aluminum foil.
2. Use plastic wrap or with a lid.
3. Stir once or twice while cooking
soup, cocoa or milk etc.
Food does not turn during
cook cycle. Food or cookware extending
oven edges of turntable prevents
turning rearrange food.
(TROUBLE 3) Oven does not operating microwave cooking