BlogHVAC RepairApril 23, 2021Why is My AC Not Blowing Cold Air?

Here are five reasons that the air conditioner in your home is not blowing cold air. These are five things that you can check on your own that might solve the problem:

1. Check the thermostat:

  • Is it set for Cool and for a temperature lower than the room temperature?
  • Is the fan set to On instead of Auto? The On setting will blow air even if the system is not producing cold air. However, the warm air would just blow temporarily until the system comes on again.
  • If it shows “lo” on the digital display, the thermostat may need new batteries.

2. Check the AC filters. Dirty filters will restrict the air flow and may cause the evaporator coil to freeze up.

3. Check the outside air compressor unit. Does it come on periodically? If not, check your AC panel box to see if the circuit breaker has tripped to the Off position. If you find this is the problem and you turn it to the On position and it happens again, we recommend you call a professional to continue diagnosing the issue.

4. Check the condensation drain line. If the drain hose on the inside air handler unit is not able to drain properly, the air handler may shut down. Pour bleach or vinegar into the drain line to unclog it.

5. Check for damaged ductwork. Check your air ducts to make sure there are not any holes or leaks.

If the suggestions above do not remedy the issue, your AC system may be low on refrigerant or have a faulty compressor.

The experienced technicians at Millian Aire are available 24 x 7 to help you get your air conditioner blowing cold air again. Call today or schedule a maintenance visit to make sure your AC system is ready for the summer season.

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