Your AC can run without cooling if airflow or refrigerant is compromised. Common causes include a clogged filter, iced indoor coil, low refrigerant from a leak, a dirty outdoor condenser, incorrect thermostat mode, or a tripped breaker to the outdoor unit. Many Roanoke and Christiansburg homes see quick fixes from cleaning and basic checks. A refrigerant issue needs a licensed HVAC tech.
Quick checks:
- Set thermostat to Cool and fan Auto.
- Replace filter.
- Clear supply/return vents.
- Rinse debris from the outdoor unit.
- Check breaker for the condenser.
Updated: 2025-12-24 00:00:00
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