How to measure the quality of a motor with a multimeter

Detection method: Take the detection with a pointer multimeter as an example (you can also use a digital multimeter). After the multimeter selects the (R×1) block, adjust zero, and then measure the resistance between the three terminals of the compressor motor. If RSM=RCS+RCM means the motor winding is normal, if RSM≠RCS+RCM means the motor winding is faulty. If RSM