By Chad Wiswall, Owner & Lead HVAC Technician, Alabama HVAC License #92244
Hurricane season officially starts June 1 and runs through November 30. Even though Central Alabama is 150 miles inland from the Gulf, every homeowner in Montgomery, Prattville, Wetumpka, Pike Road, Auburn, Dadeville, and our broader 16-city service area has felt the tail end of major Gulf storms. Hurricane Ivan in 2004, Katrina in 2005, Sally in 2020, Ida in 2021, and most recently Idalia and Helene tracked enough wind, rain, and power-grid damage into Central Alabama that HVAC systems took a beating. If you do not prep your equipment now, you will be one of the homeowners I cannot get to for three weeks after the next storm. Here is the protocol. This guide is part of our complete guide to HVAC in Central Alabama.
Why Central Alabama HVAC takes hurricane damage even 150 miles inland
The two biggest threats to your HVAC equipment from a Gulf hurricane are not direct wind impact (those storms are usually weakened well below Category 1 by the time they reach the River Region). The real damage comes from two other vectors:
Power-grid instability. Hurricanes knock out power across thousands of square miles. When the grid comes back on, it does not come back clean. Voltage spikes, brownouts, and rapid on-off-on cycling are routine in the 48 hours after restoration. Your AC compressor is the single most expensive component in your system, and it does not tolerate a hard restart into a degraded voltage condition well at all. Most "my AC quit working after the storm" calls I get are compressor or capacitor failures triggered by dirty power, not water or wind damage.
Falling debris and wind-driven projectiles. Pine straw, branches, lawn furniture, and (in extreme cases) sections of fence get tossed around even in 40 to 60 mph sustained winds. Your outdoor condenser unit is a coil of thin aluminum fins wrapped around copper tubing. A pine branch can bend those fins and reduce cooling efficiency. A piece of lawn furniture can crack the condenser fan blade. A flying piece of trim can puncture the refrigerant line set.
The third risk (real, but usually overstated) is flooding. Most of Central Alabama is not in a coastal storm-surge zone, but homes near creeks, the Alabama River, the Tallapoosa, and Lake Martin can see localized flooding fast enough to submerge an outdoor condenser pad. Submerged equipment is generally a total loss for the affected components.
The pre-storm checklist (do this NOW, before June 1)
I tell every customer the same thing: get this list done before the first named storm of the season, because once a system is in the cone of uncertainty, the items at the hardware store are gone and so is the daylight to do the work.
1. Install a whole-house surge protector at the electrical panel
This is the single highest-ROI move you can make. A panel-mounted Type 2 surge protector costs $200 to $450 installed by a licensed electrician (we partner with several in Montgomery and Dadeville if you need a referral) and protects every appliance in the house, not just the HVAC. A compressor replacement runs $1,800 to $3,500. A control board replacement runs $400 to $900. A blower motor runs $350 to $700. One surge event pays for the protector four to ten times over.
I also recommend a dedicated surge protector at the outdoor condenser disconnect. These are $80 to $180 in equipment, $150 to $300 installed if it is added to an existing service call. Cheap insurance.
2. Document your system with photos and serial numbers
Walk outside, take photos of your outdoor condenser unit from all four sides plus a close-up of the data plate. The data plate shows the model number, serial number, refrigerant type, and tonnage. Do the same for your indoor air handler or furnace. Email those photos to yourself so you have a cloud-stored copy. If your system is destroyed in a storm, your insurance adjuster will need this information, and "I don't know what model it was" can delay a claim by weeks.
3. Clear the area around the outdoor unit
Trim any tree branches within 5 feet of the condenser. Move grills, lawn furniture, pots, kids' toys, and trash cans at least 10 feet away or into the garage. Anything within "wind throw distance" of the unit is a potential projectile.
4. Change the air filter
A clean filter means the system works less hard during the recovery period when you may be running it 18 to 22 hours a day to dry the house out. A dirty filter restricts airflow and stresses the blower motor.
5. Know how to shut off power to the HVAC
Two breakers matter. The double-pole 30 to 60 amp breaker in your main panel that says "AC" or "Air Handler" or "HVAC." And the disconnect box mounted on the wall next to the outdoor condenser. Open both before a storm makes landfall and the system is going to be off for several hours anyway. Know where they are and know how to use them. If you have never opened your outdoor disconnect, do it once on a calm day in May so you are not figuring it out in the rain.
6. Stock 3 days of filters, batteries, and a backup thermostat battery
Most homes have a battery-backed thermostat. If the power goes out and stays out for 3+ days, that battery dies and your thermostat clock resets when power returns. Have a fresh AA or AAA pair (check your model) on hand.
The day-of-storm protocol
Once a named storm is in the 72-hour cone and Central Alabama is in the forecast zone, here is what to do.
T-minus 24 hours: Set the thermostat to 68 degrees and let the house get cold. The thermal mass of a pre-chilled house buys you 12 to 18 hours of comfort during a power outage. This is much more effective than people realize.
T-minus 6 hours: Move grills, furniture, and toys into the garage or secure them.
T-minus 2 hours (or when sustained winds hit 30 mph): Shut off the HVAC system at the indoor thermostat. Then go to the outdoor disconnect and open it. Then go to the main panel and trip the HVAC breaker. Three layers of disconnect.
Why all three? If the power grid spikes hard during the storm, the surge protector at the panel is the first line of defense. If that protector is overwhelmed, the open disconnect at the condenser is the second line. If both fail, the open breaker is the third. Most surge events that kill compressors happen because the system was running at the moment the spike hit. A system that is electrically isolated cannot be damaged by grid surges.
During the storm: Do not go outside to check on the condenser. Whatever happens, happens.
The post-storm restart protocol
This is where most people make expensive mistakes. The order of operations matters.
Step 1: Wait for grid stabilization
When power is restored to your neighborhood, do NOT immediately re-energize the HVAC. Give the grid 30 to 60 minutes minimum. Power utilities often perform multiple restoration attempts, and you may experience two or three on-off cycles in the first hour after restoration. Each one is a small surge event. Let the grid settle.
Step 2: Inspect the outdoor unit visually
Walk outside. Look at the condenser. You are checking for:
- Bent fins (cosmetic, usually fixable with a fin comb)
- Cracked fan blade or visible damage to the top grille (do not run if cracked)
- Debris jammed inside the unit (clear it before energizing)
- Standing water above the base of the unit (if so, do NOT energize. Call a licensed contractor for inspection.)
- Refrigerant line set damage (you will see crushed copper or visible oil staining if there is a leak)
If anything looks wrong, leave the disconnect open and call a licensed HVAC contractor. Running a damaged compressor for even 30 seconds can destroy it.
Step 3: Re-energize in correct order
If everything visually checks out:
- Close the main panel breaker for the HVAC first.
- Close the outdoor disconnect second.
- Wait 5 full minutes. Critical. Modern compressors have internal pressure equalization that needs time after a long shutdown. Bypassing this 5-minute delay is one of the most common ways to damage a compressor on restart.
- Turn the thermostat back on, set it 3 to 5 degrees above the current indoor temperature so the system does not slam into full load immediately.
Step 4: Listen and watch for the first 10 minutes
Healthy startup sounds: low hum from the outdoor fan, slight compressor whine, indoor blower kicking on within 30 to 60 seconds. Air should start cooling within 10 minutes.
Warning signs: loud humming with no fan motion (locked rotor, shut down immediately), grinding or screeching, rapid on-off-on cycling, breaker tripping. Any of these, shut it down and call us.
What to do if your system was flooded
If your outdoor condenser was submerged in any amount of standing water above its base, treat the unit as a total loss for warranty and insurance purposes until a licensed contractor evaluates it. Flooded compressors and electrical components fail unpredictably, sometimes weeks after the event, and most manufacturer warranties are voided by submersion.
Document the flood line on the unit with a photo before doing anything else. This matters for the insurance claim.
For indoor air handlers that took water damage (a roof breach, a window broken open in the air handler closet), the same rule applies. Document, do not re-energize, call a licensed contractor.
Recent Central Alabama hurricane history (for context)
[INSERT verify with Chad: specific dates and impacts of named storms that affected the River Region service area. Public record events worth referencing: Hurricane Ivan, September 2004; Hurricane Katrina, August 2005; Hurricane Sally, September 2020; Hurricane Ida, August 2021; Hurricane Helene, September 2024. Chad may have specific call-volume numbers or notable damage stories from these events worth weaving in.]
When to call us
Call Chad's AC Direct at Montgomery (334-264-6464) or Dadeville (334-478-1438) if:
- Your unit was submerged, struck by debris, or showing visible damage post-storm
- The system will not restart after the 5-minute equalization delay
- You hear humming with no fan motion (locked rotor)
- Breakers trip immediately on energizing
- The unit runs but blows warm air
We run 24-hour emergency service for storm aftermath. Be aware that in the 48 to 96 hours after a major storm, call volume runs 10 to 15 times normal across Central Alabama, and even our team will have a multi-day backlog. Pre-storm prep saves you from being in that queue.
FAQ
Should I cover my outdoor AC unit before a hurricane?
No. Manufacturer guidance from Trane, Carrier, and Goodman all say not to cover an operating outdoor condenser. The unit needs airflow. A cover that is wind-blown can damage the unit worse than the storm itself, and trapped moisture under a cover can cause corrosion. The exception is a brief, vented mesh cover designed specifically for HVAC units, which can deflect direct debris impact. Most homeowners are better off just turning the unit off, opening the disconnect, and trusting the unit's outdoor rating.
How long can I run my AC on a generator?
Most portable generators (5,000 to 7,500 watt) cannot safely start a central AC compressor. The locked-rotor inrush current on a 3-ton compressor is 60 to 90 amps for a fraction of a second. You need a generator rated at 9,000+ running watts (12,000+ surge watts) to handle a central AC, and even then, you need a soft-start kit installed on the compressor to reduce inrush. For most homeowners during an outage, run window units or a small portable AC off the generator and let the central system sit until grid power is restored.
My power was out for 3 days. Do I need to have my AC inspected before turning it back on?
Probably not, if the unit was electrically isolated (breaker tripped, disconnect open) during the outage and you do the 5-minute equalization delay on restart. If the system kept tripping on and off during multiple grid restoration attempts, or if there was visible damage to the unit, get an inspection first.
Will my home insurance cover hurricane damage to my HVAC system?
Most standard homeowner policies cover wind-driven debris damage to HVAC equipment. Flood damage is generally excluded unless you carry separate flood insurance. Power surge damage is usually covered but with low limits ($1,000 to $5,000 per event) that may not cover full system replacement. Read your policy now, before the storm, not after.
How do I find a licensed HVAC contractor for post-storm repairs?
Verify the contractor's Alabama HVAC license at the Alabama Board of Heating, Air Conditioning and Refrigeration Contractors. Our license is #92244. Avoid out-of-state "storm chasers" who show up door-to-door in disaster zones. They often lack Alabama licensure, do not pull permits, and disappear before warranty issues surface.
Hurricane season runs June 1 through November 30. Get your prep done now. Chad's AC Direct has been serving Central Alabama since 1993, with 24-hour emergency service from our Montgomery location at 2546 Bell Rd (334-264-6464) and Dadeville location at 360 Windflower Dr (334-478-1438). Alabama HVAC Contractor License #92244, BBB Accredited A+, 1,247 reviews at 4.9 stars. Buy Direct, Pay Less.