Guide

What to Do When Your HVAC Fails After Hours

When HVAC fails after hours, check the thermostat, breaker, and filter first, then decide whether the situation is genuinely urgent. Heat above 90 degrees, no heat in freezing weather, a burning smell, or water intrusion all justify an emergency call.

August 19, 20265 min read

Section 1

The three-minute triage

Confirm the thermostat is calling and has fresh batteries. Check the breaker for the air handler and the outdoor unit — a tripped breaker that resets and holds is a clue, and one that trips again immediately is a reason to stop and call. Look at the filter and the condensate drain pan. These four checks resolve a meaningful share of after-hours calls without a truck roll.

Related: Emergency HVAC Repair · HVAC service in Mauldin, SC

Section 2

When it is a real emergency

Call immediately for a burning or electrical smell, water pouring from the indoor unit, a compressor or blower making a grinding noise, or no cooling in extreme heat with infants, elderly residents, or anyone with a medical condition in the home. Commercial sites add refrigerated inventory, server rooms, and occupancy requirements to that list.

Section 3

Staying safe until we arrive

In heat, close blinds on the sun side, run ceiling fans, move to the lowest floor, and hydrate. In cold, close off unused rooms and use only heating sources rated for indoor use — never an oven, grill, or unvented outdoor heater. If you smell gas, leave the building first and call the gas utility before calling us.

Section 4

What to have ready when you call

Have the equipment brand and approximate age, what the thermostat reads, what you already tried, and whether the breaker has tripped. Photos of the unit's data plate speed diagnosis considerably. We explain any after-hours rate difference before dispatching so you can decide whether to wait for the next business day.

Frequently asked questions

Do you charge more for after-hours emergency service?
After-hours rates may apply depending on time and day. We tell you the difference before we dispatch, so the choice is yours.
Should I keep resetting the breaker?
No. One reset is reasonable. A breaker that trips again is protecting you from a fault — leave it off and call.
Do you serve commercial emergencies overnight?
Yes. Commercial sites with refrigeration, critical cooling, or occupancy requirements are handled on an escalation protocol.

Emergency HVAC repair by city

We serve Greenville County, SC and Spartanburg County, SC and Anderson County, SC and Pickens County, SC. Pick your city for local pricing, response times, and scheduling.

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