Where To Find R-22 & R410A Leaks on AC Units! Top 10 Spots!

This article covers the ten most common locations where refrigerant leaks may be on an air conditioning system. An electronic leak detector is typically used to find the general area of the leak and non-corrosive bubble leak detector is used to pinpoint the leak. In the following pictures, an Accutrak ultrasonic leak detector and Big Blu non-corrosive bubble leak detector are used to search for and find refrigerant leaks. A ultrasonic leak detector (see photo below) locates where the turbulent escaping gas is exiting the tubing. This tool can be used during a nitrogen pressure test, or while refrigerant is in the system (R-410A, R-22, or another refrigerant). Any gas escaping through a leak location makes a noise, which an ultrasonic leak detector can pick up. Oil on the inside of the tubing or water on the outside of the tubing creates an even louder sound when a leak is present.Once the leak location is located, non-corrosive bubble leak detector (see photo below) can be applied to t...