Reasons Why Your A/C Won’t Turn Off
If your air conditioner won’t stop running, it’s more than just annoying—it could signal a problem that drives up your energy bills or shortens your system’s lifespan. Here are the top reasons why your A/C won’t turn off, and when it’s time to call a professional. 1. Thermostat Set Too Low If your thermostat is set too low, your A/C may run constantly trying to reach an unrealistic temperature—especially on hot days. ✅ Fix: Set your thermostat to a reasonable temperature (typically 72–78°F). 2. Dirty Air Filter A clogged air filter restricts airflow, making your A/C work harder and longer to cool your home. ✅ Fix: Replace or clean your air filter every 1–3 months. 3. Frozen Evaporator Coil Low airflow or refrigerant issues can cause the evaporator coil to freeze, preventing the system from completing its cooling cycle. ✅ Fix: Turn off the unit and let it defrost. If it freezes again, call an HVAC technician. 4. Malfunctioning Thermostat A faulty thermostat may fail to signal your A/C to shut off when the desired temperature is reached. ✅ Fix: Test or replace the thermostat, especially if it’s older or battery-powered. 5. Fan Set to “On” Instead of “Auto” If...
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