Before restarting your AC after a storm, rule out flood exposure and electrical damage. If water reached the equipment, the unit moved, or wiring may be damaged, keep the system off and arrange a professional assessment. Do not restart it just because the outside looks dry.
For homes in Kenner, Metairie, and Greater New Orleans, the next step depends on whether the system experienced ordinary rain, a power outage, or flooding. Use the checks below to decide when normal thermostat operation is appropriate and when to call for help.
Keep the System Off After Flooding or Visible Damage
Do not approach equipment through standing water or touch wet electrical equipment. If you cannot safely reach the power controls from a dry location, leave them alone and contact the utility or a qualified electrician. Stay away from downed lines.
Floodwater can damage electrical parts and contaminate HVAC equipment even when it later appears to work. Carrier distinguishes normal rain exposure from flood damage and recommends professional assessment. A dried-out cabinet is not a safety test.
- Keep the AC off if floodwater reached the outdoor unit, indoor equipment, or ductwork.
- Arrange an assessment if the unit shifted off its pad, a branch struck it, or lines or wiring appear damaged.
- Do not open the disconnect box or equipment panels, touch wiring, tighten terminals, or replace a capacitor.
- If you see sparks or smoke, keep clear and contact emergency services as appropriate.
After a flooded home, the CDC recommends professional electrical and HVAC checks before restoring use. An HVAC contractor and electrician may both be needed, depending on what got wet.
Make a Visual Check From a Safe Location
Once the storm has passed and the area is safe, look at the equipment without opening it. Note flood marks, a tilted cabinet, branches on the unit, damaged refrigerant lines, or loose exterior wiring. Take photos from a safe distance to show the technician.
Leave debris caught in the grille or resting against damaged equipment for a professional. You can clear loose leaves and branches from the surrounding ground only when there are no electrical, flooding, or falling-branch hazards. Keep hands and tools out of the fan grille. Do not hose down storm-damaged equipment.
Restart Only After an Ordinary Outage With No Damage
An outdoor condenser is built for normal rain. Surface rainwater alone does not mean it has flood damage. If there was no flood exposure, no visible damage, no electrical warning sign, and the utility supply is stable, follow the normal restart instructions in your equipment manual.
- Use the thermostat’s normal controls and select your usual cooling temperature.
- Allow the manufacturer’s compressor protection delay to finish. A delayed start does not automatically mean a failed compressor.
- Do not repeatedly switch the system on and off or repeatedly reset a tripped breaker.
- If the AC repeatedly stops, makes new grinding or loud buzzing sounds, smells burnt, or fails to cool after its normal startup period, turn it off at the thermostat if safe and call for service.
If a breaker tripped during the storm or you are uncertain whether water entered electrical parts, have the cause checked before trying to run the system. This guide does not replace your model’s operating instructions.
What a Technician Checks
A qualified technician can assess electrical components, motors, controls, airflow, refrigerant lines, and signs of water damage. Electrical diagnosis requires proper isolation and testing: capacitors can retain hazardous energy even after power is removed.
Report when the outage occurred, whether flooding reached the equipment, any unusual sounds, and whether the system ran afterward. For local diagnosis, see our AC repair service in New Orleans or AC repair service in Metairie.
Repair Costs and Replacement Estimates
Tegridy Air’s published dispatch fee for Greater New Orleans is $109. Repair pricing depends on the diagnosis, parts, access, and damage. We explain the proposed work and quote the repair before it proceeds; an article cannot price unseen storm damage.
A free replacement estimate is separate from a repair diagnostic visit. For replacement budgeting and the factors that affect a quote, see the 2026 Kenner AC replacement cost guide. The final estimate should specify the equipment, installation scope, and any electrical or ductwork required.
Maintenance-plan coverage varies by agreement. Confirm coverage when booking rather than assuming storm inspections, new thermostats, air purification upgrades, or damage repairs are included.
Prepare for the Next Storm
Keep the surrounding area clear and address drainage concerns before severe weather. Have loose or overhanging limbs assessed safely. Ask a qualified contractor about equipment anchoring, elevation, and surge protection appropriate to your property.
Do not improvise a cover or enclosure that blocks the unit’s airflow, and never operate equipment under a cover that must be removed before use. Follow the manufacturer’s clearance and weather-preparation instructions.
A seasonal AC tune-up in New Orleans can help identify maintenance needs, but it does not make equipment floodproof or guarantee protection from a storm.
Need help after a storm? Call Tegridy Air at 504-414-8655 or request service online. Tell us about any water exposure or electrical damage before the visit.
(504) 414-8655
Related Reading
- R-410A Phase-Out: How It Affects Your Next AC Repair Bill in New Orleans
- Hurricane Season HVAC Prep: Keep Your AC Safe Before the Storm
- Repair or Replace Your AC? Honest Cost Breakdown for New Orleans Homeowners
Frequently Asked Questions
My AC is wet after a storm. Can I turn it on?
Ordinary rain on an outdoor unit is different from flooding. If floodwater reached the equipment, electrical parts may have gotten wet, or the unit was damaged, keep it off until a qualified professional has assessed it. Looking dry does not prove that it is safe.
How long should I wait after a power outage?
There is no single restart time for every system. Wait until utility power is stable, rule out flood exposure and visible damage, and follow the restart instructions and compressor delay in your equipment manual. Do not keep resetting a tripped breaker.
What should I check without opening the unit?
From a safe, dry location, look for a shifted unit, damaged cabinet, loose or damaged lines, branches resting on the unit, or flood marks. Keep your hands and tools out of the grille and electrical compartments. Report what you see to the technician.
Does a maintenance plan cover storm inspections or repairs?
Coverage depends on the terms of your agreement. Ask Tegridy Air to confirm what is included before booking; a seasonal tune-up does not automatically mean storm-damage diagnosis, repairs, or replacement are covered.