Automotive Service Excellence (ASE) Air Conditioner Certification Practice Exam 2025 - Free ASE Air Conditioner Practice Questions and Study Guide

The method that is NOT applicable for replacing an orifice tube is the approach that involves twisting the tube while pulling it out with an extractor tool. This method is ineffective because orifice tubes are typically designed to be removed and replaced straight out of their housing without any rotational movement. Twisting could potentially damage the surrounding components or the tube itself, making removal difficult or compromising the integrity of the refrigerant line.

In contrast, replacing the line that incorporates the orifice tube is a standard technique, especially if that section of the line is old or damaged. Disconnecting the liquid line and pulling the tube straight out is a straightforward and effective method often used, ensuring that the tube can be replaced without complications. Additionally, cutting out the section of line containing the orifice tube is sometimes necessary when the tube cannot be removed easily. This method allows for replacement of both the tube and potentially the line itself, should there be other issues present.