ASE Heating and Air Conditioning (A7) Practice Test

Image Description

Question: 1 / 400

What symptoms might indicate a malfunctioning expansion valve?

Constant high refrigerant pressure

Fluctuating refrigerant pressures

A malfunctioning expansion valve can lead to fluctuating refrigerant pressures within the refrigeration system. The expansion valve's primary role is to regulate the flow of refrigerant into the evaporator coil, ensuring that the right amount of refrigerant allows for optimal cooling. If the valve is not functioning correctly, it may cause erratic or inconsistent refrigerant flow, which results in fluctuating pressures.

These fluctuations can create an imbalance in the system, leading to inefficient operation and impacting overall performance. This irregularity can generate various symptoms, such as inconsistent cooling, ice buildup, or reduced efficiency. Recognizing these pressure fluctuations helps technicians identify issues with the expansion valve and take corrective actions to restore proper system function.

Get further explanation with Examzify DeepDiveBeta

Consistent temperature control

Reduced airflow

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy