HomeNo-cooling survival guide
No-cooling emergency · Updated July 2026

AC died in a heat wave — stay safe, stay cool, get it fixed

Step 0

In dangerous heat this is a safety event first, a repair second

Reach a contractor now, then use the survival plan below while help is on the way.

📞 (888) 810-2291
Medical gate: confusion, a rapid pulse, or hot skin that has stopped sweating are signs of heat stroke — call 911, not an HVAC line. Cool the person and get help immediately.
Check on them first

Who's at risk right now

Heat reaches these people first — check on them before anything else:

  • Older adults and infants — both regulate body temperature poorly.
  • Chronic conditions — heart, lung, and kidney conditions raise the risk sharply.
  • Certain medications — diuretics and beta-blockers can blunt the body's cooling response.
  • Top-floor apartments — heat rises and collects there.

If you can't keep a vulnerable person cool at home, get them to a cooling center — call 211 for the nearest one.

First hour

Two facts that save a wasted service call

1 · If there's ice, thaw it first

Ice on the lines or indoor coil? Turn the system OFF and the fan ON to thaw it for 2–4 hours. A technician cannot diagnose a frozen system — call now, and let it thaw while you wait, so the visit isn't wasted.

2 · The 15–20°F limit

A working AC only holds a 15–20°F difference from outdoors. 78–80° inside when it's 100° outside is the system working at capacity, not broken — and no part swap beats that physics on a record-hot day.

A working AC only beats the outdoor temperature by 15 to 20°F: 90° outside holds about 72° inside, 100° holds about 80°, and 108° holds about 88° — the system working at capacity, not broken.
Holding 80° when it's 100° out isn't a broken AC — it's the 15–20°F limit every system runs into on a record-hot day.

Before you call it dead, run the quick checks — breaker, filter, condensate float — in AC not turning on and AC running but not cooling.

Cool the people, not the house

Your survival timeline

Right now

Cool the body directly

Cold water on wrists, neck, and face; a wet cloth on the back of the neck. Drink water steadily, before you feel thirsty.

Right now

Fans on people, not rooms

Moving air over skin cools by evaporation — point fans at people. A bowl of ice in front of a fan adds a little chill to the breeze.

Daytime

One dark, closed room

Pick the coolest room (ground floor, north side), close it off, and pull blinds or blackout curtains on any sunny window.

Daytime

Kill heat sources

Oven off (it's the enemy), lights and hot electronics off, garage door closed. Every heat source you remove is degrees you keep.

After sundown

Night flush

Once it's cooler outside than in, open windows on opposite sides for a cross-breeze and pull the day's heat out.

Before bed

Cold shower + low floor

A cool shower drops your core temperature; sleep on the ground floor where the coolest air settles.

Call now

  • Breaker keeps tripping or a burning smell
  • Vulnerable people and indoor temps climbing
  • Outdoor unit silent, no cool air at all
  • Ice thawed but it still won't cool

Can wait a bit

  • System holding a 15–20° difference (working)
  • Coil is thawing — call placed, waiting it out
  • Healthy adults, survival tactics holding
  • Mild overnight forecast ahead
Setting expectations

What repair looks like today

In a heat wave, everyone's AC died at once, so same-day service depends on provider participation, demand, and technician availability. To speed your triage, have your system age, the symptom, and your filter's condition ready. After-hours surcharges run about $40–$80/hr on top of the fee — if you're safe and the coil is thawing, waiting until morning is often the rational call.

Get a licensed local contractor

AC repair help is available 24/7 by calling (888) 810-2291 — the call routes to a licensed local contractor in your area.

Fee details on HVAC service call cost; what happens on the visit is on what to expect from a service call. Confirmed emergency? See emergency AC repair.

Prevent the next one

Common questions

A spring tune-up before the first heat wave catches the weak capacitor or low charge that fails under load — a routine visit costs far less than an emergency one.

How long can a house stay safe without AC?

It depends on outdoor heat, humidity, and who's inside. Healthy adults tolerate a hot house for a day or two with fans, hydration, and shade; infants, older adults, and people on certain medications are at risk much sooner. If indoor temps climb into the 90s and can't be brought down, relocate vulnerable people to a cooling center — call 211 for the nearest one.

Does homeowners insurance cover food spoilage from an AC failure?

Usually not — a mechanical AC breakdown is typically excluded, though some policies cover spoilage tied to a covered power outage. Check your policy; the AC repair itself is normally out of pocket.

Can a window unit tide me over?

Yes — a single window or portable AC in the room where people sleep is a reasonable bridge while you wait for repair or replacement. Cool one room well rather than trying to cool the whole house.

Why do air conditioners die during heat waves specifically?

Because that's when they work hardest. Extreme heat pushes the system to its limit for hours on end, and any marginal part — a weak capacitor, a low charge, a dirty coil — fails under that load. It's also when everyone else's fails, which is why same-day scheduling stretches.

☏ Call a licensed local contractor — (888) 810-2291