This is the harsh truth: most HVAC failures happen because someone ignored a step. Did not calculate the load accurately. Used undersized equipment. Miscalculated the insulation needs. We've fixed hundreds of these failures. And each and every time, we remember another learning. Like in 2017, when we started adding remote monitoring to every install. Why? Because Sarah, our master tech, got frustrated of watching homeowners lose money on poor temperature settings. Now clients save 20-30% yearly.