Searco Hints & Info Corner: It’s very SHIC to understand. (Don’t just be a parts changer!)
3 main concepts one must understand to troubleshoot HVAC problems:
1. Electrical systems, both high and low voltage, and how they work in relays, circuit boards, and other devices.
2. The refrigeration cycle
3. Proficient use of your multi-meter, including where to put electrical and temperature probes, what to check for, and what the results mean.
