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Tools an AC Repair Technician Uses


One of the priorities of an HVAC company during the summer is keeping customers’ air conditioning systems up and running. Once spring maintenance season is over, our technicians are busy answering repair requests, 24 hours a day, 7 days a week. You can always trust us to be there to rescue your AC, no matter if it’s a small tweak or a bigger job.

We always stress with our customers how important it is to leave air conditioning repairs of any size to licensed professionals. There are many reasons for this, and one of them is that only professionals have the specialized tools necessary to do the jobs correctly as well as how to operate the tools.

Below, we’re going to look at some of the vital repair tools our HVAC technician use.

The Basics

Any HVAC technician will arrive at a customer’s house with all the standard tools you’d expect, like all types of screwdrivers, wrenches, hammers, extension cords, staplers, etc. You probably don’t have all of these tools in one place, and you can expect we’ll have every standard tool that may be needed.

Refrigeration Gauges

Leaking refrigerant is behind many AC malfunctions, so repair technicians will usually test the refrigerant pressure in the system to see if it has lost refrigerant. Technicians carry a variety of these gauges for different uses.

Extra Refrigerant

If an air conditioner has lost refrigerant, the technician will need to restore the lost amount (after patching up any leaks). Technicians take a supply of R-410A (a.k.a. Puron) with them so they can recharge air conditioners. Please note that a license is required to handle refrigerant!

Coil Fin Straightener

Air conditioning coils often become bent because of debris, and this will cut into system performance. A coil fin straightener is a useful tool for straightening the fins without further warping them, which is what would happen if an amateur tried to do this with just a wrench.

Leak Detector

It can be difficult to find small refrigerant leaks. If a technician discovers with a gauge that the pressure has dropped, they’ll use these moisture detectors to zero in on where the leaks are located. These are much more effective than older techniques like using soap bubbles or smoke pencils.


This sounds like a scary device. It’s actually used to measure and rate the HVAC system’s airflow and air mixture, as well as read relative humidity.


This isn’t like a thermometer you use in the kitchen or to put under your tongue to test if you’re sick! These specialized digital thermometers are essential devices for testing air conditioning performance. They have the high precision necessary for a technician to get the job done right.

Nitrogen Regulator

This is used as a pressure control valve.

Always Leave the Work to the Pros

You don’t have to understand how these tools work—that’s why you have our experts on the job! We’ll always use the right equipment to get any repair done fast and accurately.

Repair your AC today! Comfort Master Heating & Air Conditioning, Inc. lets you enjoy the comfort you deserve!

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