Service Manual - Quietside

4-7 Main Part Inspection MethodPartIndoor Unit Temperature SensorMeasure sensor resistance with a multimeterBreakdown Inspection MethodNormalAbnormalAt the normal temperature 37kΩ~8.3kΩ(-7˚C~+30˚C),0Ω...Open or ShortIndoor Unit BLDC FAN MotorMeasure terminal resistance with a multimeterNormalAt the normal temperature(10˚C~30˚C)Compare wireterminal pin number Resistance Resistance Remark RemarkRED Red, - BLACK Blue 1-3 185Ω ± 10% over 1MΩ Main +300V motor powerWHITE Blue, - White BLACK 4-3 183Ω ± 10% 1KΩ ~ 2KΩ Sub +15V control powerYELLOW - BLACK 5-3 200KΩ ~ 300KΩ controlBLUE - BLACK 6-3 10KΩ ~ 50KΩ pulseAbnormal,0Ω...Open or ShortOutdoor UnitOutdoor Temperature Sensor&Cond Temperature SensorOutdoor UnitDischarge Temperature SensorMeasure sensor resistance with a multimeterNormal At the normal temperature 37kΩ~8.3kΩ(-7˚C~+30˚C) see 12-2-6 and 12-2-8Abnormal ,0Ω...Open or ShortMeasure sensor resistance with a multimeterNormal At the normal temperature 563kΩ~157kΩ(0˚C~+30˚C) see 12-2-7Abnormal,0Ω...Open or ShortOutdoor Unit BLDC FAN MOTORMeasure terminal resistance with a multimeterNormalAt the normal temperature(10˚C~30˚C)wire pin number Resistance RemarkRED - BLACK 1-3 over 1MΩ +300V motor powerWHITE - BLACK 4-3 1KΩ ~ 2KΩ +15V control powerYELLOW - BLACK 5-3 200KΩ ~ 300KΩ controlBLUE - BLACK 6-3 10KΩ ~ 50KΩ pulseORANGE - BLACK 7-3 10KΩ ~ 50KΩ reverseAbnormal0Ω...Open or ShortOutdoor Unit 4way Valve SolenoidMeasure resistance with a multimeterNormalAbnormalAt the normal temperature(10˚C~30˚C) 1.6KΩ15%,0Ω...Open or Short4-36 Samsung ElectronicsCH£ª£ª£ªCAV_USA_30520_SM_N.indd 36 2009-2-18 17:33:52