Split-System Maintenance in Glendale: Cleaning, Freon Top-Up, and Common Mistakes

A split-system air conditioner works best when it is maintained on schedule. In Glendale, where seasonal heat can push HVAC equipment to its limits, routine service helps keep cooling stable, reduces electricity use, and prevents expensive breakdowns. This guide explains what proper split-system maintenance includes: cleaning, refrigerant (freon) top-up, and typical mistakes homeowners and inexperienced technicians make. Cleaning is the foundation. Indoor unit filters should be washed or replaced regularly so airflow remains strong and the evaporator coil does not ice up. The indoor coil, blower wheel, and condensate drain also need periodic cleaning to prevent odors, mold, and water leaks. Outside, the condenser coil must be cleared of dust and debris, and the fan area inspected to ensure heat can be rejected efficiently. Freon “refill” is often misunderstood. Refrigerant is not a consumable; if the charge is low, there is usually a leak. A professional approach is to diagnose and repair leaks, evacuate the system, and weigh in the exact factory-specified charge. Simply topping up without leak testing is a short-term fix that can damage the compressor and increase running costs. Common mistakes include overcharging or undercharging refrigerant, skipping vacuum evacuation after opening the system, cleaning coils with aggressive chemicals, ignoring drain line clogs, and installing incorrect filters that restrict airflow. Use our business directory to compare Glendale HVAC & air conditioning companies, check services offered, and choose a technician who follows proper maintenance standards.