14 Samsung Electronics
10-5 Diagnosing the main components
Components
Compressor
• Use the tester to measure
the resistance.
– Bring the component to cool down
completely before measuring.
P.T.C Relay
Condenser
Overload relay
Circuit-motor
&
Fan-motor
Rotating blade
geared-motor
Door switch
Defrost timer
Defrost heater
Bimetal
Temperature
fuse
Diagnosing methods and criteria Location
Measuring point
Primary iwre
Secondary wire
Normal
Approx 10 ~
500kΩ
Abnormal
0Ω and
∞Ω
• Use the tester to measure
the resistance.
– Bring the component to cool down
completely before measuring.
Normal
Approx ∞Ω ~ kΩ
Abnormal
0Ω and ∞Ω
Normal
Approx 10Ω ~ 80kΩ
Abnormal
0Ω and ∞Ω
Normal
Approx 200kΩ
Abnormal
0Ω and ∞Ω
Normal
Approx 100Ω ~ 20kΩ
Abnormal
0Ω and ∞Ω
Normal
Approx 10Ω ~ 20kΩ
Abnormal
0Ω and ∞Ω
• Use the tester to measure
the resistance.
– Bring the component to cool down
completely before measuring.
• Use the tester to measure
the resistance.
• Use the tester to measure
the resistance.
– Bring the component to cool down
completely before measuring.
• Use the tester to measure
the resistance.
– Bring the component to cool down
completely before measuring.
• Use the tester to measure
the resistance.
• Use the tester to measure
the resistance.
Measuring point
A B contact point
When the switch is
on by the contact
Normal
Approx 200MΩ
Abnormal
∞MΩ and
∞Ω
• Use the tester to measure
the resistance.
– Bring the component to cool down
completely before measuring.
Measuring point
Between terminals
Temperature fuse terminal
Normal
Approx 200KΩ
Approx 10Ω~300KΩ
Abnormal
0Ω and
∞Ω
• Use the tester to measure
the resistance.
Mechanical
compartment
Mechanical
compartment
Electrical
equipment box
Mechanical
compartment
Mechanical
compartment
Freezing
compartment
Refrigerating
compartment
Between the
upper and the
lower doors
Electrical
equipment box
Lower EVAP
EVAP
Normal
Approx 3KΩ ~ 6KΩ
Abnormal
∞ MΩ ~ ∞Ω
Measuring point
Bimetal terminal
Temperature fuse
terminal
Normal
Approx 200MΩ
Abnormal
∞Ω ~ ∞Ω
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