Take your A/C knowledge beyond “just gauges.” In this 1-day class, you’ll learn how to diagnose like a pro using superheat (SH), subcooling (SC), delta T, and compression ratios. We’ll cover both R-134a and 1234yf systems, show you how to spot restrictions, undercharge, and overcharge conditions, and even introduce automotive heat pump operation used in hybrids and EVs. This isn’t theory you forget tomorrow—our hands-on labs will have you calculating SH and SC, comparing readings to P–T charts, and putting your skills to the test on live vehicles. If you’ve ever second-guessed a compressor call or wanted a clear roadmap to faster, more accurate A/C diagnostics, this class is for you. 👉 Seats are limited—sign up today and master the numbers that make or break every A/C repair.