Samsung Electronics
5-9
5-4 Fault Diagnosis of Major Parts
Parts
Temp.Sensor
Heat ex. Sensor
Indoor Fan Motor
Outdoor Fan Motor
Stepping Motor
(UP/DOWN swing motor)
Diagnosis
Measure resistance with a tester.
Normal
8
K
Ω
~27
K
Ω
at ambient temperature (+0°C ~ +30°C)
Abnormal
∞
, O
Ω
… open or short
Measure resistance between terminals (CN72) with a tester
Normal
At ambient temperature (10°C ~ 30°C)
Abnormal
Measure the voltage between ground and signal wire of the fan motor
Normal
Abnormal
Abnormal if voltage does not change from 0V to 5V.
Normal
At ambient temperature (10°C ~ 30°C)
Abnormal
∞
, O
Ω
… open or short
Measure resistance between red wire and each terminal.
Normal
Approx. 380
Ω
at ambient temperature (20°C ~30°C)
Abnormal
∞
, O
Ω
… open or short
between
Resistance
Red, Yellow
190±10
Ω
Red, Blue
170±10
Ω
between
Voltage
Gray, Orange
05V~4.5V
Yellow, Orange
5V
between
Resistance
Black, White
350±10
Ω
Black, Red
270±10
Ω
Содержание US07A1VE
Страница 2: ... Samsung Electronics Co Ltd FEB 1997 Printed in Korea Code No DB81 10122A 1 ...
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Страница 27: ...Samsung Electronics 3 14 MEMO ...
Страница 42: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor Unit ...
Страница 44: ...Samsung Electronics 6 3 6 2 Outdoor Unit 24 1 24 25 25 2 25 1 25 3 25 4 25 5 18 18 1 19 ...
Страница 48: ...6 7 Samsung Electronics MEMO ...
Страница 50: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 a Main PCB 7000Btu DB93 10483A ...
Страница 52: ...Samsung Electronics 8 3 8 1 b Main PCB 9000 12000Btu 12000BUT DB93 10471A 9000BUT DB93 10485A ...
Страница 55: ...Samsung Electronics 9 1 9 Wiring Diagrams 9 1 Indoor Unit ...
Страница 57: ...Samsung Electronics MEMO ...
Страница 58: ...Samsung Electronics MEMO ...
Страница 59: ...10 1 10 Schematic Diagrams 10 1 Indoor Unit Samsung Electronics ...
Страница 60: ...Samsung Electronics 10 2 10 2 Remote Control ...