It’s one of every homeowner’s worst summer nightmares.
You come home after a long day, your thermostat reads 78°, but the house feels much warmer. The vents are blowing warm air—or no air at all.
Then your phone buzzes with a Heat Advisory.
Now what?
When temperatures are dangerously high, a broken air conditioner isn’t just inconvenient. It can become a safety concern, especially for children, older adults, and anyone with underlying health conditions.
Here’s what to do if your AC stops working during extreme heat.
Step 1: Stay Calm and Check the Basics
Before assuming the worst, take a few minutes to check:
- Is the thermostat set to Cool?
- Has the circuit breaker tripped?
- Is the air filter completely clogged?
- Is the outdoor unit running?
Sometimes the solution is simple.
If everything appears normal and your home is still warming up, it’s time to call a professional.
Step 2: Protect the People Who Need It Most
According to the National Weather Service, extreme heat is one of the leading weather-related hazards in the United States.
Children, older adults, pregnant women, and people with chronic medical conditions are especially vulnerable during prolonged periods of high temperatures.
If someone in your home begins experiencing:
- Dizziness
- Confusion
- Heavy sweating
- Nausea
- Rapid heartbeat
move them to a cooler location immediately, encourage hydration, and seek medical attention if symptoms worsen.
Step 3: Reduce Indoor Heat
While waiting for repairs:
- Close blinds and curtains
- Avoid using the oven
- Turn off unnecessary lights and electronics
- Stay on the lowest level of the home if possible
- Drink plenty of water
Every small step helps slow the increase in indoor temperature.
Step 4: Know When to Leave Home
If indoor temperatures continue to rise and conditions become unsafe, don’t hesitate to relocate temporarily.
Many communities open:
- Cooling centers
- Public libraries
- Community centers
- Shopping malls
during periods of extreme heat.
Your family’s safety always comes first.
Step 5: Call a Trusted HVAC Professional
Once immediate safety concerns have been addressed, it’s time to restore your home’s comfort.
At Canyon Air Systems, we understand that AC failures during a Heat Advisory require prompt attention.
Our experienced technicians will identify the problem quickly and recommend the best solution to get your home comfortable again.
Can These Emergencies Be Prevented?
In many cases, yes.
Routine maintenance helps identify worn components before they fail during the hottest days of the year.
It’s one of the simplest ways to reduce the risk of unexpected breakdowns.
No one plans for an air conditioner to stop working during a Heat Advisory.
But having a plan—and knowing who to call—can make all the difference.
At Canyon Air Systems, we’re here to help homeowners throughout Glendora and Greater Los Angeles stay safe, comfortable, and prepared all summer long.
If your AC isn’t keeping up with the heat, don’t wait.
Call Canyon Air Systems today to schedule your $99 Diagnostic and get your comfort back as quickly as possible.
FAQ
Should I stay in my home if my AC stops working during a Heat Advisory?
If indoor temperatures become unsafe—especially for children, seniors, or anyone with health conditions—move to an air-conditioned public location until your system is repaired.
Can regular maintenance help prevent emergency breakdowns?
Yes. Routine inspections can identify worn or failing components before they cause unexpected failures during peak summer temperatures.
Do you offer same-day service?
Yes. Canyon Air Systems offers Same-Day Service when available, helping homeowners restore comfort as quickly as possible.