Troubleshooting Your Air Conditioner

From simple issues like a mis-set thermostat or a dirty filter to more complex situations requiring component replacements, there are various reasons why your air conditioner may be running but not lowering the temperature in your house. Before calling a professional, here are some items you should check:

The thermostat Is Set Incorrectly

When you notice your home getting warmer than usual, first check the thermostat settings. Ensure it's set to cool mode. If it is, check the temperature setting to ensure it hasn’t been changed. If it's set to heat or constant fan mode, switch it back to cooling operation.

Dirty Air Filter

Your AC system likely includes an air filter that catches dirt, dust, and other particles. A dirty filter can block airflow and reduce cooling. Locate your system’s air filter, turn the system off, remove the filter, and inspect. If it’s dirty, replace it.

The Condenser Unit Is Blocked

The outdoor condenser unit includes a coil with closely spaced metal fins. Debris accumulation between the fins can block airflow, reducing energy efficiency and cooling capacity. Clear away debris or gently rinse the coil with a hose.

Damaged Heat Pump

If your outdoor unit is a heat pump, it may experience similar issues as an AC unit. Check for dirty or frozen coils, refrigerant leaks, or compressor malfunctions. If everything seems fine and you're still not getting cool air, contact a professional.

Frozen Evaporator Coil

The indoor evaporator coil removes heat and humidity from indoor air. Signs of a frozen coil include frost on the refrigerant tubing and inadequate cooling. Since accessing the coil is difficult, it's best to leave this issue to a professional.

Refrigerant Leak

A refrigerant leak can lead to insufficient cooling, longer run times, or compressor damage. Resolving this issue requires professional attention.

Undersized Air Conditioner

An undersized AC may struggle to cool your home, especially in extreme temperatures. Consider adding a ductless unit or replacing the system with one that's properly sized. Consult a qualified HVAC professional for accurate assessment and solutions.

Don’t let a malfunctioning air conditioner disrupt your comfort. If you've checked these items and are still experiencing issues, don't hesitate to contact Brothers HVAC. Our team of professionals is ready to diagnose and resolve any air conditioning problems, ensuring your home stays cool and comfortable all summer long. Schedule a service today and let us help you keep your cool!