AC Not Cooling Below 75 Degrees? 9 Proven Fixes That Work

Central air conditioning thermostat displaying 75 degrees inside a home while an outdoor AC condenser unit runs in the background on a hot summer day.

By Home Repair Genie Quick Answer If your AC not cooling below 75 degrees issue has you frustrated, several common problems could be reducing your system’s cooling capacity. Dirty filters, restricted airflow, refrigerant issues, and thermostat problems are among the most common causes. Start by checking airflow restrictions and thermostat settings before moving on to … Read more