When a refrigeration compressor motor fails to start, the FIRST thing that should be checked for is a （）.<br>A:loose expansion valve control bulb<br>B:low differential setting on the H-Pcutout<br>C:blown fuse in the motor circuit<br>D:faulty suction pressure regulator

When a refrigeration compressor motor fails to start, the FIRST thing that should be checked for is a （）.
A:loose expansion valve control bulb
B:low differential setting on the H-Pcutout
C:blown fuse in the motor circuit
D:faulty suction pressure regulator

出自：海船船员证

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