LG MH-1355M Service Manual page 31

CONDITION
Oven light does not light with
door opened.
Oven light does not light in
cook cycle. (Oven light lights
when door is opened.)
Oven light lights, but turntable
motor does not operate.
Turntable motor operates
normally but circulation motor
does not operate.
Turntable drags or
makes noise.
CAUSE
No power in home.
Open wire in power cord or
wire harness.
Defective oven lamp switch or
out of adjustment.
Defective oven light.
Open or loose wire connection
to the above components.
Blown fuse or Oven light.
COOKING CONDITION
Defective relay 3 of P.C.B.
Defective primary switch or out
of adjustment
Defective turntable motor.
Open wiring of turntable motor.
Defective relay 4 of P.C.B.
Defective circulation motor.
Open or loose wiring to the
circulation motor.
Excessive weight on tray or
improperly balanced.
– 31 –
TEST PROCEDURE OR
CORRECTION
Check wall outlet.
Replace or repair wiring.
Test procedure oven lamp
switch. (See page 38.)
Replace.
Check wiring.
Test procedure fuse.
(See page 39.)
Test procedure relay 3 of P.C.B.
(See page 40.)
Test procedure primary switch
(See page 25.)
Test procedure turntable motor.
(See page 38.)
Check connector and repair
wiring.
Test procedure relay 4 of P.C.B.
(See page 40.)
Test procedure circulation motor.
(See page 38.)
Check and repair wiring. Check
receptacles of wire.
Distribute food evenly, cook
smaller portions and/or use
lighter weight cookware.