Samsung MH020FPEA Service Manual

Also see for MH020FPEA: User manual Service manual Service manual Installation manual Service manual

Samsung Electronics12-1212-1212-5 Fault Diagnosis of Major PartsPreparation : multimeter (AC voltage, DC voltage, Resistance)IndoorTemperature sensorHeat exchanger in/out sensorOutdoorTemperature sensorCondenser temperature sensorOutdoorDischarge temperature sensorOLP temperature sensorIndoor Fan MotorOutdoor Fan MotorOutdoor unit EEVStepping motorMeasure the resistance between terminals of the sensor connector housing.In case of outdoor unit sensor, "view mode" is used for checking sensor temperature.In case of Indoor temperature sensor, temperature is displayed on the display unit in"Fan Mode" operation.NormalAbnormal ∞, 0Ω...open or shortMeasure the resistance between terminals of the sensor connector housing.In case of outdoor unit sensor, "view mode" is used for checking sensor temperature.NormalAbnormal ∞, 0Ω...open or shortMeasure the resistance between terminals of the Motor connector housingNormal At the normal temperature (10˚C - 30˚C)Abnormal ∞, 0Ω...open or shortMeasure the resistance between terminals of the Motor connector housingNormalAbnormal ∞, 0Ω...open or shortMeasure the resistance between terminals of the Motor connector housingNormal 40-50Ω Orange-Gray, Red-Gray, Yellow-Gray, Black-GrayAbnormal ∞, 0Ω...open or shortDiagnosisPartAmbient temperature 15˚C 20˚C 25˚C 30˚C 25˚C 40˚CResistance of sensor[KΩ] 14.7 12.1 10 8.3 6.9 5.8Ambient temperature 0˚C 10˚C 20˚C 30˚C 40˚C 50˚CResistance of sensor[KΩ] 553 362 242 166 165 82Resistance[Ω]MH035FPEA MH052FPEA*MH✳✳✳✳✳✳✳ MH✳✳✳✳✳-12 MH052FPEA1Yellow-Blue 250~280 250~280 120~150 MainYellow-Red 420~480 330~370 120~150 Sub*MH020FPEA / MH023FPEA / MH026FPEA / MH✳✳✳✳✳-07 / MH✳✳✳✳✳-09Terminals(wire color) RemarkTerminal(wire color) Model Bender Resistance(Ω) RemarkSHIBAURA 356~435SINYA 531~650DAEYANG 312~381 MainMH052FWEA SUNGSHIN 130~159DAEYANG 211.5~258.5SHIBAURA 324.9~397SINYA 320~391DAEYANG 252~308 SubMH052FWEA SUNGSHIN 106.2~130DAEYANG 164.7~201.3MH023/026/035FWEAMH✳✳VW2-✳✳Yellow-BlueRed-YellowMH023/026/035FWEAMH✳✳VW2-✳✳Terminals(wire color) Resistance[Ω] RemarkRed-Blue 95~105 Main 1Yellow-Blue 95~105 Main 2Blue-White(run capa line) 60~75 SubRed-White Blue(run capa line) 0~1 Thermal fuse