All Guides

When to replace AC unit equipment is easier to decide with a clear process. This guide gives you three quick tests, a seven-question scorecard and worked examples of the 50 percent and $5,000 rules, plus their blind spots. It explains why old R-22 systems tip the balance, lists the warning signs that a unit is near the end, and shares patterns homeowners report on forums. A final section covers sizing, ducts, quotes, timing and cost.

This guide shows how to know if your AC is broken, starting with a 60-second triage of the most common signs and what each one usually means. You'll learn a two-minute temperature test, the free checks to run before calling anyone, and how to tell a broken system from one that's just struggling in a heat wave. It also shares patterns homeowners report on forums, explains when to call a pro now versus later, and gives repair cost ranges. A short prevention list helps you avoid repeat breakdowns.

Water dripping from your AC vent is usually caused by drainage or airflow issues. Learn the exact reasons and how to fix them before it leads to bigger damage.