Why is My AC Blowing Warm Air? (Top Troubleshooting Steps)
If the fan is set to "On," it will circulate air continuously even when the condenser outside is not actively cooling it. Next, inspect your air filter. A severely clogged filter restricts airflow so badly that the system cannot absorb heat, causing the indoor coil to freeze over and blow warm air.Finally, check your electrical panel for a tripped breaker. Sometimes, a simple power surge knocks the outdoor unit offline while the indoor blower keeps running.
If the fan is set to "On," it will circulate air continuously even when the condenser outside is not actively cooling it. Next, inspect your air filter. A severely clogged filter restricts airflow so badly that the system cannot absorb heat, causing the indoor coil to freeze over and blow warm air.Finally, check your electrical panel for a tripped breaker. Sometimes, a simple power surge knocks the outdoor unit offline while the indoor blower keeps running.
When to Call in the HVAC Professionals
If these basic checks do not solve the problem, you are likely dealing with a refrigerant leak, a failed compressor, or a broken capacitor. These require professional diagnostic tools. When DIY fails, contact Andes Heating & Air Conditioning for rapid, accurate repairs. Remember to check:
- Thermostat Settings: Verify it is set to "Cool" and "Auto."
- Air Filter: Replace it immediately if it is clogged with dust.
- Breaker Box: Ensure the switch for your AC unit hasn't tripped.
- Outdoor Unit: Make sure there is no debris blocking the condenser fan.
