LG MH6848G, Service Manual

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5-17
Output is full power
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 PCB
assembly.
(TROUBLE 6) Oven does not cook properly when programmed for the set power level
(Operates properly on HIGH)
CONDITION CHECK RESULT CAUSE REMEDY
(TROUBLE 7) Grill
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.
CONDITION CHECK RESULT CAUSE REMEDY
1. Heater is not
operating.
Abnormal.
Normal.
Abnormal.
Normal.
Thermostat and
relay3.(Grill)
Malfunction the
heater.
Replace.
Malfunction the
thermostat.
Replace.
Heater.
Abnormal.
Normal.
Grill Control Switch
Malfunction the
grill control switch
Replace.
No continuity. Wire connection. Open or loosen.
Replace or
connect tightly.
1. Lower tempera-
ture the oven.
Abnormal.
Normal.
Abnormal.
Thermostat and
relay3.(Grill)
Malfunction the
heater.
Replace.
Malfunction the
thermostat.
Replace.
Heater.
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