AC Blowing Warm Air? 6 Easy Fixes to Try First

Is your air conditioner blowing warm or hot air? Is it turning off and on frequently or just not working? Before calling a professional A/C repair service, try these DIY repairs.

Safety First

Remember, safety first! Always turn off the power before attempting any repairs, and if in doubt, consult a professional.

6 DIY Solutions

1. Check the Thermostat

Set your thermometer to Cool, instead of Auto, which will keep the unit from power cycling too frequently.
See if the batteries need to be replaced.

2. Reset the Circuit Breaker

Air conditioners share electricity with other devices. Check your circuit breaker box and flip any switches that are off.

3. Clean the Air Filter

If you can’t remember the last time you changed the filter, it’s probably time to change it, and, as a general rule, you should change it at least twice a year (more if you have pets).

4. Clean the Condenser Coils

The condenser coils, located outside the house, expel heat to keep the indoor unit cool. Clean any debris around the fan box outside to maintain proper function.

5. Open or Unblock All Registers

Registers allow air to flow back into the system to be heated or cooled. Make sure these are open and unobstructed, especially by furniture.

6. Unclog the Condensate Line

Mold, mildew, and other kinds of debris can clog the condensate line. Use a wet/dry shop vacuum to suction the line.

When to Call a Professional

While some repairs are DIY-friendly, some issues require specialized knowledge and tools.

• Refrigerant Leak: Refrigerant leaks can be dangerous and require professional handling. Contact a professional immediately if you notice hissing sounds, bubbles on the A/C coil, or a chemical smell.
• Faulty Compressor: Signs include shaking during startup, unusual noises, warm air blowing, water leakage, and frequent breaker trips.
• Electrical Issues: If your unit behaves erratically or frequently trips the circuit breaker, turn it off and call a professional.
• Motor Failure: Weak airflow, strange noises, or slow/frozen fan blades indicate motor failure.
• Unknown Issue: If you’ve tried everything and still face problems, contact professionals for a thorough inspection and a tailored solution.

Still Having Trouble?

For comprehensive and timely assistance with your air conditioner, reach out to us through our website, Facebook, or by phone.

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