During a gauge test of the air conditioning system you find both the suction pressure and the discharge pressure to be low. Which of the following could be the cause?

Question

Quizplus · Accepted Answer

Low suction and discharge pressures in an air conditioning system can be caused by low refrigerant pressure (either just low or very low), indicating a possible leak or undercharge, or by a blockage in the expansion valve or orifice tube, which restricts refrigerant flow. Therefore, any of the listed reasons could be the cause.

During a Gauge Test of the Air Conditioning System You