Why is My AC or Mini-Split Blowing Warm Air?

If your air conditioner or ductless mini-split is running but blowing warm air, it could be due to a dirty filter, low refrigerant, or a failing component.

Warning Signs: If you hear loud, unusual noises coming from the outside unit—such as grinding, buzzing, or heavy rattling—turn your system OFF immediately at the thermostat. These sounds often indicate a failing fan motor or a dying compressor. Running the system in this state can cause catastrophic damage to the equipment.

Next Steps: Please keep the system turned off and schedule a diagnostic visit. Our technicians carry replacement parts for most major brands and can test the compressor and condenser coils on-site to determine if a repair or replacement is necessary.