Samsung MH020FPEA Service Manual page 186

Fault Diagnosis of Major Parts(cont.)
Preparation : multimeter (AC voltage, DC voltage, Resistance)
Part
Crank case heater
Indoor unit step motor
Flap, Front panel
Samsung Electronics
Measure the resistance between terminals
Normal 1.1-1.3KΩ
∞, 0Ω...open or short
Abnormal
Measure the resistance between terminals of the Motor connector housing
Normal
Motor
Flap
Front panel
∞, 0Ω...open or short
Abnormal
Diagnosis
Resistance[Ω] Terminals(wire color)
280~320
Red-Yellow, Red-Orange,
Red-Blue, Red-Pink
110~130
12-13