- Condenser not operating – First, make sure it’s getting power. The plug may have come loose or the power switch may have been bumped. A blown fuse or tripped breaker is another possibility. If power isn’t the problem, lower the thermostat setting five degrees and wait a few minutes. If the condenser still doesn’t start up, the motor may be faulty and require professional repairs.
- Too little cooling – Sometimes just lowering the thermostat setting a few degrees will take care of this problem. On very hot days, your usual setting may not be enough to produce your preferred temperature. Because dirt buildup on your indoor evaporator coil can reduce your system’s cooling efficiency, clean the coil if it looks dirty. Light buildup can be removed with a soft brush, while spray-on foaming coil cleaner will work for moderate buildup.
- No cooling – A system that runs but doesn’t cool is one of the more frustrating of common A/C problems, but it can often be solved with a thorough cleaning. Dirt and debris buildup on the outdoor condenser or the evaporator coil can block airflow enough to prevent your system from cooling. If the system is clean, a malfunctioning compressor or other component may be at fault. A refrigerant leak is also possible, so consult a professional promptly.
- Short cycling – When your system kicks on then quickly shuts down again, it can’t cool or dehumidify effectively and the components suffer excess wear and tear. As with many common A/C problems, dirt buildup is often the cause. If your air filter is dirty, replace it. Then clean the outdoor and indoor coils as necessary.
While most common A/C problems require only minor repairs or maintenance work, the cause of these problems isn’t always obvious to a non-professional. To keep your A/C running through the long, hot Mobile-area summers, take a moment to learn how to address the most frequently occurring problems.