Four Diagnostic Devices Used By HVAC Technicians Today

Even in today's technologically advanced age, HVAC technicians need to physically inspect air conditioning systems to keep them in good working order. Increasing reliance on technology-based air conditioning diagnostics hasn't meant that the role of an engineer who is on-site and inspecting equipment and ducting in person has been completely done away with. And yet, there are numerous tools available today for air conditioning diagnostics that provide precise measurements and rapid assessments. These gadgets not only enhance the accuracy of diagnoses but also streamline fault finding, making repairs and maintenance less time-consuming and, therefore, often less costly as well. Read on to learn more about the sort of diagnostic devices commonly used by HVAC engineers in the field today.

Digital Multimeters

To begin with, digital multimeters are an essential tool for many field engineers. These devices provide a convenient means of forming a comprehensive assessment of the electrical system within any HVAC unit. In terms of air conditioning diagnostics, they can be used to measure voltage, resistance, and current levels. With these noted, the technician will be able to spot potential electrical issues, such as short-circuited relays or parts of a system that suffer from overloads. With the ability to pinpoint fluctuations in electrical input and output levels, digital multimeters are important for troubleshooting. They can also assist with the prevention of likely electrical failures, making them useful for preventive maintenance, too.

Refrigerant Leak Detectors

Leaks of air conditioning refrigerants can lead to significant issues with the operation of any HVAC system. Not only does leakage often result in reduced efficiency, but it also has the potential to do environmental harm. In light of this, HVAC engineers tend to use refrigerant leak detectors in their air conditioning diagnostic processes. Such devices are sensitive to various types of gases associated with refrigerants. They can identify the presence and location of a leak, too, thereby allowing for quick and accurate repairs to be conducted.

Infrared Thermometers

Also known as laser thermometers, these tools are frequently deployed in air conditioning diagnostics. They allow HVAC technicians to measure temperatures in places they cannot access directly. Whether they're used in ductwork, high ceilings, or other hard-to-reach areas, they require no direct contact. Instead, they work by detecting the infrared energy emitted from an object. This measurement is then converted into a temperature reading. Infrared thermometers provide a non-invasive means of identifying temperature disparities in an HVAC system without compromising on accuracy.


Finally, many HVAC professionals utilize anemometers. These diagnostic tools measure air speed and volume, both crucial factors in assessing system performance. Analyzing airflow rates assists with diagnosing faults like partial blockages in the ducting or incorrectly functioning fans. 

Contact a professional to learn more about air conditioning diagnostics