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Troubleshoot Before You Call for Professional Air Conditioning Repairs

It often happens on the hottest days: you turn on your air conditioner and…

Nothing happens.

Don’t worry – FSi’s expert team of repair technicians is ready for any A/C emergency, any time. Before you contact us for air conditioning repair service, it pays to do a little detective work to see if the problem is one you can solve without paying for a house call.

Here’s a troubleshooting guide for what to do if your A/C isn’t working the way it should:

If your air conditioner isn’t working at all:

  1. Make sure your thermostat:
    • Is set to “AC,” “cool,” or “fan”
    • Is set to at least 5 degrees below the current room temperature (if it isn’t, your cooling system sensors may not detect that it’s time to get working)
  2. Check for tripped circuit breakers.
    • A circuit breaker trips (turns off) to stop the flow of electricity and keep a circuit from overheating; reset tripped circuits and try your air conditioner again (Tip: if it isn’t already, label your A/C and other circuits for quick reference during an outage).
  3. Make sure all power switches are on.
    • Make sure power switches that affect both the outdoor (condenser) and indoor (air handler) units are on.

If none of the above measures work, contact FSi for professional air conditioning service.

If your AC system turns on, but blows warm air:

  1. Make sure your thermostat is set properly (see #1 above).
  2. Make sure all vents are open and unblocked.
  3. Make sure all power switches are turned on (see #3 above)
  4. Check the outdoor condenser unit to see if it’s running. If it isn’t:
    • Check the power switch (see above).
    • Check the condenser’s circuit breaker (see above).
    • Check for debris inside the condenser (TURN OFF THE POWER FIRST!).
  5. Check the indoor unit.
    • Make sure the power switches are on (see above).
    • Check for clogged air filters; clean or replace them if needed and try the A/C again.

If your air conditioner still blows warm air, contact FSi for professional air conditioning service.

Want to know the best way to avoid most A/C problems? Sign up for an FSi Air Conditioning Service Plan. Our Advantage- and Value-level plans include an annual tune-up, priority service calls, repair discounts, and more. Contact us to sign up today!