Emergency AC repair in Columbia

Watch the people before the equipment

According to the National Weather Service, heat exhaustion tends to show up as heavy sweating with skin that feels cold and clammy, often with nausea or dizziness. Heat stroke is a different picture: a very high body temperature, skin that is hot and red, and sometimes confusion. That one is a 911 call.

• A basement is often the coolest room in a Columbia house. If there is none, or it is still too warm, go to an air conditioned place. The CDC warns that once it is very hot indoors, fans by themselves won't keep heat illness away.
• Pull the shades on the south and west sides, keep drinking water, and take cool showers.
• Knock on an older neighbor's door. The CDC points out that people living without air conditioning carry more risk during extreme heat.

A short checklist while you wait

1. At the electrical panel, find the breaker for the indoor unit and the one for the condenser. Flip a tripped breaker back once. If it trips again, leave it.
2. Set the thermostat to Cool and a few degrees below the room. Swap the batteries if the screen is dark.
3. Pull the filter and hold it to the light. Replace it if it is gray and solid.
4. Look at the copper lines near the condenser. Ice means switch cooling off and run the fan alone to melt it, and mention the ice on the call.
5. Check for standing water around the furnace. A float switch in the drain pan will cut the AC when the drain backs up.
6. Stand by the outdoor unit. Is the fan turning, or is the unit only humming?

Jot down the answers. A line like "condenser buzzes, fan blade still" gives the technician most of the diagnosis before the truck leaves.

Columbia's hot stretches, by the numbers

Heat this serious isn't rare here. The airport averaged 42.7 days a year at 90°F or more over 2016-2025, and through October 24, 2026 the 2026 count was 44, including a 11 day run of 90s that ended September 9, 2026. The peak was 100°F on September 5, 2026. The first and last 90 degree days now arrive around June 2 and September 24 on average. Those are the weeks when a tired system finally quits, and when every HVAC phone in town is ringing.

Average days at 90°F or hotter, by month

When the power is what failed

For an outage, Ready.gov advises keeping the refrigerator and freezer shut, running any generator outside and well away from windows, and watching everyone for signs of heat illness. Once power returns, wait a few minutes before you ask the AC to start again.

Nights and weekends

Some companies answer outside business hours, and many charge a premium when they do. Ask for that fee before anyone drives out. If the family can sleep safely in the basement or somewhere else for one night, a weekday morning visit at the normal rate is often the smarter spend.