Samsung AC052HBLDKH - Main Part Inspection Method

4-36 Samsung Electronics
4-8 Main Part Inspection Method
Compare terminal Resistance Remark
Red, Blue 185Ω ± 10% Main
Blue, White 183Ω ± 10% Sub
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)
Abnormal
∞,0Ω...Open or Short
Outdoor Unit
Outdoor Temperature Sensor
&
Cond Temperature Sensor
Measure sensor 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 Sensor
Measure sensor 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)
Abnormal 0Ω...Open or Short
Outdoor Unit 4way Valve Solenoid
Measure resistance with a multimeter
Normal At the normal temperature(10˚C~30˚C) 1.6KΩ±15%
Abnormal
∞,0Ω...Open or Short
wire pin number Resistance Remark
RED - BLACK 1-3 over 1M +300V motor power
WHITE - BLACK 4-3 1K ~ 2K +15V control power
YELLOW - BLACK 5-3 200K ~ 300K control
BLUE - BLACK 6-3 10K ~ 50K pulse
wire pin number Resistance Remark
RED - BLACK 1-3 over 1M
 +300V motor power
WHITE - BLACK 4-3 1K
 ~ 2K  +15V control power
YELLOW - BLACK 5-3 200K
 ~ 300K  control
BLUE - BLACK 6-3 10K
 ~ 50K  pulse
ORANGE - BLACK 7-3 10K
 ~ 50K  reverse
Remark : 4-5-4~7 contents are for heat pump model (DH18/24BT) .