When late-August heat fatigue causes your AC to hum while the outdoor fan refuses to spin, a blown capacitor is usually to blame. See why shutting the system off protects your compressor.
Tracing the Source of Rhythmic Clicking Noises Inside Your HVAC Walls
When your AC struggles to start in the late summer heat, the rhythm of the clicking from your walls is a major diagnostic clue. See how to tell a relay issue from a failing compressor.