60
4. Troubleshooting
4-2 Electrical Malfunction
FIGURE
TESTS MEASURE
RESULTS
Low Voltage Transformer
Low Voltage Transformer
*
Measure resistance of Primary and
secondary coil.
*
Measure secondary voltage.
*
Make sure whether connector or wire
of low voltage transformer has been
damaged or not.
Approx
Primary coil(white) : 75 ~ 80
secondary coil :
Red : 1.8~2.2
, AC 13.5V
yellow: 0.8~1.2V, AC 8V
*
Replace or repair if wire of
connetor has been damaged.
Door plunger switch
Door plunger switch
*
Check the state of working of switch.
*
Make sure whether wire, housing
and terminal is connected with switch
has been damaged or not.
Nomal open : 0
Nomal close :
*
Replace or repair if wire or
terminal has been damaged.
Hot Surface & Surface Lamp
(Back Guard)
Hot Surface & Surface Lamp
(Back Guard)
*
Measure voltage which is supplied
with lamp terminal.
*
Check whether harness has been
loosen or disconnected.
Approx.
*
Lamp voltage :120V
*
resistance :
*
Replace or repair if wire or
terminal has been damaged.
Oven Sensor
Oven Sensor
*
Check whether the resistance values
of oven sensor is same with a chart
¶
s
one.
*
Check whether wire or housing has
been loosen or disconnected.
Approx.
at the room temperature :1080
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