If submitting a service request after hours or on the weekend, please note it is best to call.

Keeping Your AC and Heat Pump Safe When Isaias Knocks the Power Out

October 9, 2026 | Blog

Hurricane Isaias is expected to make landfall on the northern Gulf Coast late Friday night or early Saturday, somewhere between the Mississippi coast and the western Florida Panhandle based on current forecasts. Hazlehurst, Crystal Springs, and Brookhaven sit well inland and west of that path, so we are not expecting a direct hit. Still, big Gulf storms can stretch utility crews thin across the state, and gusty bands or scattered outages are possible. Keep checking the National Hurricane Center for updates, and take a few minutes now to learn how to protect your AC during a power outage.

Most storm prep articles talk about flashlights and bottled water. As a heating and cooling company, we want to talk about something people often overlook: what a power outage, and especially the moment the power comes back, can do to your HVAC system.

Why Power Restoration Is Hard on HVAC Equipment

When the grid comes back after an outage, the power is not always clean. Voltage can surge, sag, or flicker while crews switch circuits back on. Your outdoor AC or heat pump unit has a compressor, capacitor, and control board that do not like those swings. Add in a whole neighborhood of systems trying to start at the same moment, and you have a recipe for blown capacitors and tripped breakers.

How to Protect Your AC During a Power Outage

  • Set your thermostat to off during an outage. When power returns, wait several minutes before turning your system back on. This lets the voltage settle.
  • Turn the system off at the thermostat if lights start flickering. Repeated short power blips are rough on compressors.
  • Clear the outdoor unit after the storm. Branches, leaves, and debris against your condenser restrict airflow. Shut off power to the unit before clearing anything.
  • Do not run a system that was flooded or hit by debris. Have it inspected first.
  • Listen for trouble. Humming without starting, clicking, or a burning smell after power returns means it is time to call for AC repair.

Can a Generator Run Your Air Conditioner?

Yes, if it is sized for it. This is where a lot of homeowners get surprised, and the right generator is the long-term way to protect your AC during a power outage. A small portable generator might keep the refrigerator and a few lights on, but central AC and heat pumps draw a large surge of power the moment the compressor starts. An undersized generator will stall, shut down, or stress your equipment.

Sizing a generator to cover your HVAC means looking at:

  • Your system’s tonnage and starting load. The compressor’s startup draw is far higher than its running draw.
  • Everything else you want to keep running. Refrigerator, freezer, well pump, lights, and medical devices all add up.
  • How the generator connects. A standby generator with an automatic transfer switch is installed to handle your home’s loads correctly and safely.

Because we install and service the HVAC equipment itself, we can match a generator to your actual system, including heat pumps that keep your home warm through Mississippi winter cold snaps.

A Quick Word on Portable Generators

If you will rely on a portable this weekend, keep it outside and at least 20 feet from doors, windows, and vents. Never run it in a garage or carport. Carbon monoxide poisoning is a serious risk after storms. And never connect a portable generator to your home’s wiring without a proper transfer switch or interlock.

Plan Your Generator Before the Next Storm

A new standby generator cannot be installed in time for Isaias. Sizing, permitting, and scheduling take time. But outages here are not limited to hurricane season, and fall and winter weather can knock out power too. After the storm passes is a good time to get a professional recommendation for a system that will actually carry your AC and heat.

Channell Heating & Cooling has served Hazlehurst and Copiah County since 1980. Learn more about our generator installation services, explore financing options, or call us at (601) 255-7347. Our Shield of Protection membership also keeps your heating and cooling system checked before extreme weather arrives.

Why Choose Channell Heating & Cooling?

We stand by our 100% customer satisfaction guarantee

Learn More
bbb-1
BBB Accredited Business
We are fully Accredited by the BBB.
IcRoundPeopleAlt
Professional Staff
Our highly trained and certified AC technicians are dedicated to offering 5-star AC service every time.
SolarMedalRibbonStarBold
Award Winning Service
We're humbled to be considered one of the top air conditioning companies in the Hazlehurst area.
GriddyIconsThumbsUpFilled
Hassle-Free
We worry so that you don't have to. We offer stress-free service calls and AC installations.

What Our Customers Are Saying