If your air conditioner suddenly broke down in the middle of a scorching hot summer day, you should know some basic DIY fixes. However, for more serious system breakdowns, it’s always best to bring in a professional AC repairman. Here are 4 common AC problems that call for professional repair. 1. Refrigerant Leak Your AC unit contains refrigerant, which allows the system to operate smoothly. Upon installation, your AC is charged with refrigerant, and when your system has a leak or poor charge, the refrigerant level declines. To solve this problem, call a professional HVAC technician for a refrigerant recharge. 2. Broken Compressor Fan The job of your unit’s fan, compressor, and condenser coils is to release heat from the air, transporting it outside to generate cool indoor air. If you notice an inconsistent air flow, it is likely that the outdoor fan is in bad shape. It’s advisable to seek for repair as soon as possible because a broken can cause your unit to overheat. A certified HVAC technician will come to your place and perform a thorough inspection of your system. 3. Drainage Issues If the humidity outside skyrockets or the condensate drain lines become clogged, moisture could back up into your air conditioning system. If you think that your unit’s performance is declining, put the blame on excess condensation. If you think that there’s something wrong with the components of your air conditioner, your local HVAC contractor will provide you an accurate estimate for repair. 4. Frozen Condenser Coils Frozen condenser coils could be the culprit behind your inefficient unit. When the condenser coils freeze up, it can be caused by obstruction such as blocked return ducts and dirty air filters. Your HVAC technician will diagnose the problem behind your frozen condenser coils. Whatever HVAC problem you face, it’s best to call a professional technician for prompt and efficient repair.