What the clicking tells you
Tell Scott whether the thermostat is calling for cooling, whether the indoor blower starts, whether the outdoor fan spins, and whether the outdoor unit clicks once, chatters, buzzes, hums, or tries to start and stops. Those details help narrow the first test without guessing at parts.
Stop if the system trips or smells hot
Do not keep cycling the thermostat or resetting the breaker if the outdoor unit clicks, buzzes, smells hot, or trips again. Shut the system off and text the symptoms, especially after a storm, outage, or repeated failed startup.
Read the breaker-trip safety guideWhy this starts as a diagnostic
Clicking and chatter can overlap with contactor wear, capacitor problems, low-voltage control issues, thermostat calls, wiring, outdoor fan trouble, or compressor startup symptoms. The $95 Springfield Diagnostic is the right starting point before repair pricing.
Related guide: AC buzzing or clicking noise