
What to Do During a Power Outage in a Heatwave: HVAC Tips for Suffolk County Homeowners
A sudden power outage in the middle of a Suffolk County heatwave can make your home feel unbearable fast. Not only is it uncomfortable, but it can also be dangerous — especially for children, seniors, and those with health conditions.
Knowing what to do in the first few minutes of a power outage can help protect your HVAC system and keep your family safe. Here’s what our experts recommend if your cooling system shuts down during a blackout.
Turn Off Your HVAC System Immediately
As soon as the power goes out, turn off your air conditioner at the thermostat and breaker. This protects the unit from potential damage caused by a power surge when electricity is restored.
Keep Windows and Doors Closed
It might be tempting to open windows, but keeping them closed helps trap cooler indoor air for longer. Block direct sunlight with curtains or shades to prevent indoor temps from climbing too quickly.
Use Portable, Battery-Powered Fans
Battery-operated or rechargeable fans can provide temporary relief. Combine with damp washcloths on your neck or wrists for additional cooling.
Stay Hydrated and Seek Out Cooler Spaces
Drink plenty of water and avoid heat-producing activities. If you have a basement, it may be cooler than upper floors. Avoid using the oven or stove top.
Unplug Appliances to Prevent Power Surge Damage
When the power comes back on, a surge can damage electronics — including your HVAC system. Keep your system and large appliances unplugged until the power stabilizes.
Wait Before Restarting Your AC
Once power returns, wait at least 5–10 minutes before turning your AC back on. This allows time for electrical flow to normalize and protects your compressor.
Invest in a Whole-Home Surge Protector or Backup Generator
Surge protectors can save your HVAC equipment from serious damage. A backup generator can keep critical systems, including your AC, running when the power goes out.
Learn About Our Cooling Services
Contact Us for Emergency Support
Did You Know? Indoor temperatures can rise more than 10°F per hour during a summer outage in an uninsulated home.
FAQs
Q: Is it okay to run the AC immediately after a power outage?
A: No. Wait 5–10 minutes to avoid damage from unstable voltage.
Q: What should I do if my HVAC doesn’t turn back on?
A: Check the breaker and thermostat. If it still doesn’t start, call a technician.
Q: Will surge protectors stop all power damage?
A: They greatly reduce risk, but extreme surges can still cause problems. That’s why safe shutdown procedures matter.
Q: Can you install surge protection for HVAC systems?
A: Yes. We offer whole-home surge protection that shields major appliances including your AC.