What happens when a compressor has a broken valve?

When a compressor has a broken valve, it typically results in low suction pressure and low discharge pressure. This occurs because the compressor is unable to properly intake refrigerant from the evaporator side or discharge it effectively to the condenser side due to the valve malfunction. The broken valve restricts or prevents the normal flow of refrigerant, leading to insufficient pressure in both the suction and discharge lines.

In a healthy compressor, the suction pressure is elevated as the compressor draws in refrigerant vapor, while the discharge pressure is high as it compresses that vapor and sends it out to the condenser. However, with a broken valve, the pressure readings drop significantly since the refrigerant flow is disrupted, preventing the compressor from functioning at its designed efficiency.

This scenario does not enhance energy efficiency; in fact, it often results in increased energy consumption because the compressor may draw more power trying to compensate for the loss of refrigerant flow, increasing wear and potentially leading to further mechanical issues. Additionally, a compressor with a broken valve does not typically operate quietly; instead, it might produce unusual noises due to the irregular cycling and pressure changes that occur as a result of the valve failure.