Why is my AC unit not working after a power surge?

Power surges can wreak havoc on your appliances, and your AC unit is no exception. If your AC unit is not working after a power surge, there are several reasons why this could be happening.

One of the most common reasons for an AC unit not working after a power surge is that the surge may have damaged the electrical components of the unit. The sudden spike in power could have overloaded the circuitry, causing damage to the capacitors, wiring, or compressor. In some cases, the damage may not be immediately visible, but it can still prevent the AC unit from functioning properly.

Another possible reason for your AC unit not working after a power surge is that the surge may have tripped the circuit breaker or blown a fuse. This is a safety feature designed to protect your home from electrical fires, but it can also prevent your AC unit from turning on. Check the circuit breaker panel and replace any blown fuses to see if this resolves the issue.

In some cases, the power surge may have caused a malfunction in the thermostat or control board of the AC unit. If the thermostat is not sending the correct signals to the unit, it may not turn on properly. Similarly, if the control board is damaged, it may not be able to communicate with the various components of the AC unit, leading to a malfunction.

To troubleshoot why your AC unit is not working after a power surge, it is recommended to first check the circuit breaker and fuses to ensure they are not the cause of the issue. If the circuit breaker and fuses are intact, it may be necessary to call a professional HVAC technician to assess the damage caused by the power surge and determine the best course of action to repair the unit.

In conclusion, a power surge can cause significant damage to your AC unit, leading to it not working properly. It is important to take the necessary steps to troubleshoot the issue and seek professional help if needed to get your AC unit up and running again. Remember to always unplug your appliances during a storm or power outage to prevent damage from power surges.