Free Shrader Valve Refrigerant Leak Tester (Quick Tip)
- Craig Migliacco

- Apr 28, 2020
- 1 min read
Updated: Mar 2

Make a Quick Free Refrigerant Leak Tester for the Schrader Valve (Valve Core) at the Access Port. Drill an 1/8” hole in the end of an extra port cap. Screw your testing cap to the port and add a drop of bubble leak detector to see if it blows a bubble. Remove the testing cap when done. This will avoid getting any bubble leak detector in your port or on the valve core. If there is a leak present, replace the valve core using a Valve Core Removal Tool. After leak checking, add the correct port cap to seal and protect the port.




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This is a brilliant, low-cost trick for troubleshooting refrigerant leaks around valve cores. Using a bit of soap solution is the most reliable way to pinpoint those stubborn bubbles without needing expensive electronic detection equipment.
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I really appreciate the straightforward tips on using a Shrader valve refrigerant leak tester! cookie clicker 2 I had a similar issue before, and understanding how to properly use these tools made all the difference in troubleshooting. Thank you for sharing this practical insight!