What Is the Most Common Air Conditioner Repair Issue?

Most AC repair issues we see in Pittsburgh involve units that won’t cool or won’t start. Common causes are failed electrical parts, refrigerant leaks or low charge, dirty coils, or thermostat miscalibration. We offer 24-hour diagnostics and repairs, plus coil cleaning and leak detection by NATE-certified technicians.

Quick checks:

• Set thermostat to Cool and 3–5°F below room temp.
• Replace a dirty air filter.
• Check the breaker and furnace switch.
• Look for ice on lines; if present, turn system off.

Updated: 2026-01-02

Need help in Pittsburgh, PA? Call (412) 254 4979 or book online.

"Antonio got my AC fixed up in no time and was very transparent throughout the process!" — Mari S.

Internal link: See our AC services page. https://www.boehmerheating.com/air-conditioning