The short answer
What Hail Does to an AC Unit
Hail strikes the outdoor condenser unit, which has thin aluminum fins designed to release heat. A strong hailstorm can flatten these fins, reducing airflow and making the system work harder. In severe cases, hailstones can crack the coil, causing refrigerant to leak out.
A refrigerant leak is serious because it reduces cooling performance and can damage the compressor over time. You might not notice the problem right away, especially if the unit runs but cools less effectively. A visual check after a storm is a good first step to spot bent fins or visible dents.
- Inspect the outdoor unit for dents and bent fins
- Look for signs of refrigerant leak, such as oil stains
- Listen for unusual hissing sounds when the unit runs
- Check if the fan blade spins freely without obstruction
- Note any debris like leaves or twigs lodged in the fins
When to Call the Pros
If you see bent fins, you can sometimes straighten them with a fin comb, but a puncture or a suspected leak needs professional attention. The pros can test the system pressure and find the source of a leak. They can also replace damaged coils or fins as needed.
Acting quickly matters because a slow refrigerant leak can cause the compressor to overheat and fail. That repair is far more expensive than fixing the coil early. If your unit stopped cooling or makes odd noises after a hailstorm, arrange for an inspection soon.
Protecting Your Unit from Hail
You can reduce the risk of hail damage with a few simple measures. A sturdy cover or a small roof over the outdoor unit can deflect hailstones. You can also install a hail guard, which is a metal mesh that sits over the fins without blocking airflow.
Check your unit's placement. If it sits in an open area, consider a protective screen. However, make sure any cover does not restrict airflow, as that can cause the unit to overheat. For homes in hail-prone areas, a quick check of your unit after any storm is a wise habit.
What to Do After a Hailstorm
After a hailstorm, turn off the AC and inspect the outdoor unit. Look for dents, bent fins, or any visible cracks. Clear away any debris that might have been blown into the unit. If you find damage, do not run the system until it has been checked.
Running a damaged unit can worsen the problem, especially if the fan hits a bent fin or if refrigerant is already low. Document the damage with photos, which can help if you file a claim. Your insurance company decides what is covered, so review your policy details.
- Turn off the AC before inspecting
- Take photos of any visible damage
- Remove loose debris carefully
- Note the date and time of the storm
- Keep records of any repair receipts
Insurance and Water Damage Connection
Hail damage to your AC unit can sometimes lead to water damage inside your home. If the unit leaks water from a damaged coil, it can soak walls, floors, or ceilings. That moisture can cause mold growth if not dried quickly.
Policies vary, and your insurer decides what is covered. If you experience water damage from a hail-damaged AC, dry the area thoroughly and consider a professional water damage inspection. For homes in Redmond, keeping a record of storm damage is a practical step.
Water damage does not wait
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (425) 407-5186Frequently asked questions
How can I tell if my AC has a refrigerant leak?
Look for ice buildup on the copper lines, oil stains near the coil, or a hissing sound when the unit runs. The air may also feel less cold than usual. If you suspect a leak, turn off the system and call the pros for a pressure test.
Can I fix bent fins myself?
You can use a fin comb to straighten mild dents, but avoid touching the coil itself. For deeper damage or any sign of a leak, stop and call a professional. Attempting a DIY repair on the coil can cause further harm.
Will hail damage always cause a leak?
No, minor dents often only reduce airflow slightly. However, any impact weakens the metal. A small crack might not leak immediately, but it can worsen over time. An inspection after a large hailstorm is the safest approach.