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The air temperature associated with a direct reciprocating air conditioning plant is found to be too warm, and the compressor is not operating. A service check determines the compressor suction pressure to be above the normal cut-in point, with a normal head pressure, and high evaporator superheat. Which of the following could be the cause of this problem?
A) Cooling water flow to the condenser is excessive.
B) A liquid line solenoid valve is stuck open.
C) A liquid line solenoid valve has failed closed.
D) The low pressure control contacts are stuck open.
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