Question 114Refrigeration & AC - QMED

The correct answer is A) higher than normal suction pressure. Leaking suction valves in a refrigeration compressor will cause a higher than normal suction pressure. This is because the leak allows refrigerant to bypass the compressor, reducing the compressor's ability to draw a proper vacuum on the suction side. The higher suction pressure is an indication that the suction valves are not sealing properly. The other options are incorrect because: B) an increase in compressor noise may indicate other issues like worn bearings, C) lower evaporator temperature would indicate the system is working properly, and D) lower suction pressure would be the opposite of what is expected with leaking suction valves.