LG MH-6682B, Service Manual

Page: 27 / 36

5-17
(TROUBLE 7) Grill
CONDITION CHECK RESULT CAUSE REMEDY
1. Heater is not
operating.
Abnormal.
Normal.
Normal.
Heater.
Thermostat and
relay3.(Grill)
Abnormal.
Malfunction the
thermostat.
Malfunction the
heater.
Replace.
Wire connection.
No continuity. Open or loosen.
Replace or
connect tightly.
Replace.
1. Lower tempera-
ture the oven.
Abnormal.
Normal.
Heater.
Thermostat and
relay3.(Grill)
Abnormal.
Malfunction the
thermostat.
Malfunction the
heater.
Replace.
Replace.
(TROUBLE 6) Oven does not cook properly when programmed for the set power level
(Operates properly on HIGH)
CONDITION CHECK RESULT CAUSE REMEDY
Output is full when
you set lower
power level.
Abnormal.
Disconnect the
wire leads from
relay 2 and check
continuity relay 2.
(Operate the unit)
Defective P.C.B.
assembly.
Replace P.C.B.
assembly.
NOTE: * Make sure the wore leads correct position.
* When removing the wire leads from parts be sure to grasp the connector not the wires.
* When removing the magnetron, be sure to install the magnetron gasket in the correct position and in
good condition.