| 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. |
