Samsung Electronics 4-36
4-7 Main Part Inspection Method
Part Breakdown Inspection Method
Indoor Unit Temperature Sensor
Measure sensor resistance with a multimeter
Normal At the normal temperature 37kΩ~8.3kΩ(-7˚C~+30˚C)
Abnormal ∞,0Ω...Open or Short
Indoor Unit BLDC FAN Motor
Measure terminal resistance with a multimeter
Normal
At the normal temperature(10˚C~30˚C)
Wire Pin number Resistance Remark
RED - BLACK 1-3 Over 1MΩ +300V motor power
WHITE - BLACK 4-3 1KΩ ~ 2KΩ +15V control power
YELLOW - BLACK 5-3 200KΩ ~ 300KΩ control
BLUE - BLACK 6-3 10KΩ ~ 50KΩ pulse
Abnormal ∞,0Ω...Open or Short
Outdoor Unit
Outdoor Temperature Sensor
&
Cond Temperature Senso
Measure terminal resistance with a multimeter
Normal
At the normal temperature 37kΩ~8.3kΩ(-7˚C~+30˚C)
see 12-2-6 and 12-2-8
Abnormal ∞,0Ω...Open or Short
Outdoor Unit Discharge
Temperature Sensorr
Measure terminal resistance with a multimeter
Normal
At the normal temperature 563kΩ~157kΩ(0˚C~+30˚C)
see 12-2-7
Abnormal ∞,0Ω...Open or Short
Outdoor Unit BLDC FAN MOTOR
Measure terminal resistance with a multimeter
Normal
At the normal temperature(10˚C~30˚C)
Wire Pin number Resistance Remark
RED - BLACK 1-3 Over 1MΩ +300V motor power
WHITE - BLACK 4-3 1KΩ ~ 2KΩ +15V control power
YELLOW - BLACK 5-3 200KΩ ~ 300KΩ control
BLUE - BLACK 6-3 10KΩ ~ 50KΩ pulse
ORANGE - BLACK 7-3 10KΩ ~ 50KΩ reverse
Abnormal ∞,0Ω...Open or Short
Outdoor Unit 4way Valve Solenoid
Measure sensor resistance with a multimeter
Normal At the normal temperature(10˚C~30˚C) 1.6KΩ±15%
Abnormal ∞,0Ω...Open or Short
NS090SDXEA_E_SM_33623A(1)_1.indd 36 2011-04-08 �� 10:55:31