A failed air conditioner during a humid Pittsburgh heat wave is more than uncomfortable — indoor temperatures can climb into the danger zone for infants, older adults, and people with health conditions, and the humidity makes it worse. Werth-Aire provides 24/7 emergency AC repair so you are not left waiting days in the heat for cooling to come back.
Emergency no-cool calls usually trace to a failed capacitor or contactor, a seized compressor, a frozen coil from airflow or refrigerant problems, a tripped float switch from a clogged condensate line, or a refrigerant leak. We diagnose the true fault on the spot, carry the common parts, and quote the repair flat-rate before starting, with the after-hours fee explained on the call.
While you wait, you can help safely: set the thermostat to a reasonable cooling setpoint, replace a dirty filter, and if the coil is frozen, switch the system to fan-only to help it thaw. Do not repeatedly reset the breaker or handle the refrigerant lines yourself.
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Safety first. AC emergencies are electrical as much as mechanical. If you smell something burning or see scorching at the outdoor unit or the breaker panel, shut the system off at the breaker and call us — do not keep resetting it. During extreme heat, treat rising indoor temperatures as a real health risk for infants, older adults, and anyone with a medical condition, and get them somewhere cool.
No cooling? Do this first (safely)
Set a reasonable setpoint
Set the thermostat to cool a few degrees below the room reading. Setting it to 60 will not cool faster — it just runs the system harder and longer.
Replace a dirty filter
Restricted airflow is the most common cause of weak cooling and frozen coils. A clean filter alone sometimes restores cooling.
Thaw a frozen coil
If you see ice on the coil or the refrigerant lines, switch the system to fan-only (not cool) to let it thaw. Running it frozen risks the compressor.
Clear the outdoor unit and call
Brush leaves and debris off the outdoor coil so it can shed heat, then call (831) 461-3437 if cooling does not return — do not repeatedly reset the breaker.
AC emergencies we handle fast
- No cooling during a dangerous heat wave
- The outdoor unit hums but will not start
- A frozen coil that has shut cooling down
- Water leaking from the indoor unit into the home
- The AC trips the breaker every time it starts
- A burning smell or the system suddenly going dead
What our emergency ac repair covers
Electrical failures
Capacitors, contactors, and relays that leave the outdoor unit humming or dead in the heat.
Frozen coils
Airflow and refrigerant diagnosis to thaw and correct a coil that has iced over.
Refrigerant leaks
Leak detection and proper recharge by EPA-certified techs — not a summer top-off habit.
Water & condensate
Clogged drains and failed float switches that cause leaks and shutdowns during peak use.

Our process
Heat-wave priority
No-cool calls during dangerous heat move to the front, especially for vulnerable households.
On-site diagnosis
We isolate the true fault — electrical, refrigerant, airflow, or condensate — and carry common parts.
Flat-rate quote
You approve a written price before work begins, with the after-hours fee explained up front.
Cooling verified
We confirm proper supply-air temperature and clear the condensate before we leave.
Why heat-wave breakdowns cluster on the hottest day
An air conditioner rarely fails in mild weather — it fails the first time it is pushed flat-out, which is precisely when a home gets dangerously hot and when we are busiest. The heat exposes a weak capacitor, a marginal compressor, or a low charge that scraped by on milder days. We prioritize the households that can't wait — homes with infants, older adults, or health conditions — carry the common parts, and quote flat-rate on site. While you wait, set a reasonable setpoint, replace a dirty filter, and switch a frozen system to fan-only to thaw. A spring AC tune-up is the best way to avoid the call entirely.
What affects the cost
Emergency AC repairs are quoted flat-rate on site. Cost drivers include:
- The failed part — capacitor and contactor versus compressor or coil
- Whether leak detection and refrigerant are required
- After-hours, weekend, or holiday timing
- Condensate and water-damage corrections
We explain the after-hours fee before dispatch and quote the repair flat-rate on site. Published AC-repair estimates run about $160–$700 depending on the fault.
| Symptom | Likely cause | What to do first |
|---|---|---|
| Silent outdoor unit | Capacitor or breaker | Reset once, then call |
| Frozen coil | Airflow or low charge | Fan-only to thaw |
| Warm air only | Compressor or refrigerant | Call for diagnosis |
| Burning smell | Electrical fault | Shut off at the breaker |
Why choose Werth-Aire for emergency ac repair
During a heat wave we prioritize the households that cannot wait — homes with infants, older adults, or health conditions — and quote the repair flat-rate on site before we start.
Serving Pittsburgh since 2015
11+ years keeping North Hills and Allegheny County homes comfortable through hard winters and humid summers.
4.9★ across 51 reviews
Local homeowners rate us for straight answers, clean work, and pricing with no surprises.
Licensed, insured & EPA-certified
EPA Section 608 technicians installing to ACCA Manual J/S/D standards, with the proper Pittsburgh permits pulled on every install.
Flat-rate pricing, 24/7 response
A written quote before we start, the diagnostic fee explained up front, and around-the-clock help when it can’t wait.
Emergency AC Repair across Pittsburgh & the North Hills
From our base on the Perry Highway corridor, we bring emergency ac repair to homes across Allegheny County and Western Pennsylvania. That includes Ross Township, McCandless, West View, Bellevue, Avalon, and Shaler Township, plus the South Hills, the river boroughs, and the wider metro. See every community on our HVAC service areas page, or call (831) 461-3437 to confirm we cover your street.
Related services
Related reading
- AC Blowing Warm Air During a Heat Wave: Quick Fixes — Warm air from the vents on the hottest day of the year is maddening. Here is what to check safely — and when it is time to call for a repair.
- Signs Your AC Has a Refrigerant Leak — An AC that needs refrigerant every summer has a leak. Here are the signs, why "just add more" is the wrong fix, and how proper leak detection works.

