What Should I Do If My AC Is Running But Not Cooling?

Start with quick checks you can do safely. Set the thermostat to Cool and lower the setpoint. Replace a dirty filter. Make sure the A/C breaker is on, and clear debris from the outdoor unit. If it still runs but doesn’t cool, likely culprits are low refrigerant, dirty coils, a failed capacitor, or a tripped condensate drain switch. In Elgin and Austin, we offer a $75 A/C repair diagnostic, waived if we do the repair, and we’ll present clear options.

Updated: 2025-12-29

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