AC Dead After a Power Outage in Shreveport
The outage did not break your air conditioner. The moment the power came back almost certainly did.
In Shreveport, fitting a surge protector at the outdoor condenser costs $180-420 and protects the parts most often destroyed when power is restored after a storm.
The most common storm-related AC failures in the Shreveport area are electrical rather than mechanical: capacitors at $165-330, contactors at $155-310, and control boards at $260-720.
An outdoor condenser that has stood in floodwater should be inspected before it is powered up, because energising a wet unit can turn a repairable event into a $1,380-2,850 compressor replacement.
Why restoration is the dangerous moment
While the power is out, nothing is happening to your equipment - it is simply off. When the utility re-energises the line, voltage does not arrive smoothly. There is a spike, and sometimes several as the grid stabilises.
Your air conditioner's most vulnerable components are its cheapest ones. A capacitor is a small cylinder that stores charge; a surge is exactly the wrong thing to hand it. Contactors weld their contacts. Control boards fail outright. None of it is visible, which is why people assume a mechanical failure and get quoted accordingly.
What to do before the power comes back
- Turn the thermostat off, and if you can reach it safely, pull the disconnect at the outdoor unit. A system that is isolated cannot be surged.
- Wait for the power to be stable for 15 to 30 minutes before restoring it. Early restoration is when the grid is most unsettled.
- Turn the system back on at the thermostat, not by throwing the breaker with the thermostat already calling for cooling.
- If it does not start, do not keep cycling it. Repeated attempts against a shorted component are how a $165 part becomes a $720 board.
Flooded outdoor units
Condensers sited low on a slab, or in a side yard that collects runoff, can end up standing in water after a Shreveport downpour. The unit itself is built for weather, but not for submersion: water gets into the electrical compartment and can reach the compressor terminals.
A submerged unit that is left alone and then inspected is often salvageable. A submerged unit that somebody switched on to see whether it worked usually is not. If yours has been under water, leave the disconnect open and say so when you call.
Surge protection: what it is worth
| Shreveport cost | |
|---|---|
| Surge protector at the condenser | $180-420 once |
| Capacitor destroyed by a surge | $165-330 each time |
| Contactor destroyed by a surge | $155-310 each time |
| Control board destroyed by a surge | $260-720 each time |
| Compressor lost to repeated electrical stress | $1,380-2,850 |
Common questions
Does my whole-house surge protector cover the AC?
It helps, but a panel-level device and a condenser-level device protect against different things. In a market with this many outages, technicians here commonly recommend both.
Will homeowners insurance cover surge damage?
Sometimes, particularly following a named storm. Photograph the damage, keep the technician's written diagnosis, and ask before assuming - policies differ significantly on this.
How long should I wait before turning the AC back on?
Fifteen to thirty minutes of stable power is a sensible rule. The instinct is to turn everything on the second the lights come back, and that is precisely the worst moment.