Resetting Your AC Unit After a Power Outage

Resetting Your AC Unit After a Power Outage

  • June 25, 2020
  • Matthew

Daily thunderstorms and heavy rains are an unfortunate reality of living in Southwest Florida. Considered the lightning capital of the U.S., Florida leads the country in both the number of hits and the density of strikes, with just over 20 flashes per square mile every year! As a result, power outages are a reoccurring problem for us. When these problems do happen, not only do we lose our lights but we also lose our air conditioning.


When power outages, brown outs, power surges, or nearby lightning strikes occur, your air conditioning system may abruptly shut down and will try to immediately restart. Unfortunately, you may find that either the system does not come on at all, or if it does restart, the air is blowing warm instead of cold.


Please give the following steps a try to see if they resolve the issue:


1. Tripped Circuit Breaker: If your unit will not come back on after a power issue, go to where your circuit breaker panel is and turn the AC breaker off and then back on again. If it does come on, then the breaker functioned as designed by tripping when too much power came through the line. This can save your air conditioner from damage.

2. Thermostat & Humidistat Settings: Ensure that your thermostat is set to cool/auto and to a temperature that is below the current inside temperature. Also, if you have a humidistat it should be turned to the “On” position.


NOTE: The installation of a surge protector on your AC system can provide you with even more system safety. If more electricity gets to your unit than a breaker can protect against, a surge protector will be the last line of defense to protect your AC unit from serious damage. Ask our service techs how you can get one installed.


If your air conditioning system turns back on after a power issue but runs warm:


Try These Steps to Reset Your AC System:

1. Turn the system off at the thermostat. This will stop the thermostat from calling for cooling until you have reset the system’s internal breakers.

2. Now wait 30 minutes. During this time, the internal breaker in your air conditioner will reset. During the 30 minutes, keep the thermostat in the “Off” position. The internal breaker cannot reset if the thermostat is calling for cooling.

3. After 30 minutes, turn the thermostat back to “Cool” and the air conditioner should turn back on.


If These Steps Didn’t Then Help Give Us a Call

If resetting the air conditioning system did not correct the cooling issue, or the unit will not come back on, there may be other problems that will need to be diagnosed and corrected by a professional HVAC service technician. Give us a call at 239-731-5545. We are available 24/7 to keep you cooling even during the stormy months of summer in Florida.

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Contact Information


ADDRESS: 1257 Lamar Road

North Fort Myers, FL 33903

Phone: 239-731-5545
Toll Free: 877-731-5545