AC Won't Turn On

Professional AC Won't Turn On in Asheville & Western NC

An air conditioner that won't turn on at all is a stressful problem on a hot Western North Carolina day — especially when you're not sure what to check first.

What Causes an AC Not to Turn On

The most common causes include a failed capacitor (which provides the startup boost for the compressor and fan motor), a failed contactor (the electrical switch that sends power to the outdoor unit), a refrigerant leak that has triggered a low-pressure safety cutoff, a tripped breaker, a blown fuse on the control board, or a failed thermostat or control board.

Quick Things You Can Check

Verify the thermostat is in 'cool' mode with the temperature set below room temperature. Check your electrical panel for a tripped breaker — reset it once. Check that the disconnect switch at the outdoor unit is in the 'on' position. Make sure the indoor drain pan isn't full — some systems have a float switch that shuts everything down to prevent water damage. If the thermostat screen is blank, the problem may be there.

When This Becomes a Serious Problem

If the breaker keeps tripping every time the AC tries to start, stop resetting it — this indicates an electrical problem like a failing compressor drawing too much current, and repeatedly resetting it can cause damage or create a fire hazard. A no-start condition on a hot day also means your home temperature will climb quickly.

When to Call for AC Repair in Asheville

If the basic checks don't get your AC running, you need a technician with electrical testing equipment. Quality Comfort provides same-day AC repair in Asheville — capacitors and contactors are among the most common parts we carry, and most no-start repairs are completed on the first visit.