Diagnosing The Main Components - Samsung SR-21NME Service Manual

10-5 Diagnosing the main components

Components
Use the tester to measure the
Compressor
resistance.
- Bring the component to cool down
completely before measuring.
Use the tester to measure the
resistance.
P.T.C Relay
- Bring the component to cool down
completely before measuring.
Use the tester to measure
the resistance.
Condenser
Use the tester to measure
the resistance.
- Bring the component to cool down
Overload relay
completely before measuring.
Use the tester to measure
Circuit-motor
the resistance.
&
- Bring the component to cool down
completely before measuring.
Fan-motor
Use the tester to measure
the resistance.
Rotating blade
- Bring the component to cool down
geared-motor
completely before measuring.
Use the tester to measure
the resistance.
Door switch
Use the tester to measure
the resistance.
Defrost timer
Use the tester to measure
the resistance.
Defrost heater
- Bring the component to cool down
completely before measuring.
Use the tester to measure
Bimetal
the resistance.
Temperature fuse
SR-21/24 NME(WME)
Diagnosing methods and criteria
Measuring point
Primary iwre
Secondary wire
Approx ∞Ω~㏀
Approx 10Ω ~ 80㏀
Approx 200㏀
Approx 100Ω~20㏀
Approx 10Ω~20㏀
Measuring point
A B contact point
When the switch is on
by the contact
Measuring point
Between terminals
Temperature fuse
terminal
Approx 3㏀~6㏀
Measuring point
Bimetal terminal
Temperature fuse
terminal
－15－
Normal Abnormal
Approx 10~500㏀
3~20㏀
Normal Abnormal
0Ω and ∞Ω
Normal Abnormal
0Ω and ∞Ω
Normal Abnormal
0Ω and ∞Ω
Normal Abnormal
0Ω and ∞Ω
Normal Abnormal
0Ω and ∞Ω
Normal Abnormal
Approx 200MΩ
Normal Abnormal
Approx 200㏀
Approx 10Ω~300㏀
Normal Abnormal
∞MΩ~ ∞Ω
Normal Abnormal
Approx 200MΩ ∞Ω~ ∞Ω
Location
Mechanical
compartment
0Ω and
∞Ω
Mechanical
compartment
Electrical
equipment box
Mechanical
compartment
Mechanical
compartment
Freezing
compartment
Refigerating
compartment
Between the
0Ω and
upper and the
∞Ω
lower doors
Electrical
0Ω and
equipment box
∞Ω
Lower EVAP
EVAP