Frequently Asked Questions

Whether you should replace an AC coil or the entire air conditioning system depends on the system’s age, condition, efficiency, refrigerant type, warranty coverage, and the cost of the repair. A coil replacement can make sense when the rest of the system is relatively new and in good condition. If the AC is older, has recurring problems, or requires a costly repair, replacing the complete system may provide better long-term value. Neese can inspect the system and explain the repair and replacement options based on its condition.

Most residential air conditioning systems should receive professional maintenance regularly, with the exact schedule depending on the equipment, manufacturer recommendations, system usage, and overall condition. Neese recommends seasonal HVAC maintenance so the cooling system can be checked before periods of heavy use. A maintenance visit can identify developing problems, check system performance, and help keep the equipment operating efficiently.

A higher SEER2 rating means an air conditioning system meets a higher cooling-efficiency level, but the highest-efficiency system is not automatically the best choice for every home. The value of upgrading depends on factors such as how often the system runs, the home’s cooling needs, equipment and installation costs, and how long you expect to use the system. Neese can compare compatible AC systems and efficiency levels based on the home and comfort requirements.

An AC can run without cooling properly for several reasons, including a dirty air filter, restricted airflow, a dirty condenser or evaporator coil, thermostat problems, low refrigerant caused by a leak, or a malfunctioning component. Because several different problems can produce the same symptom, the system should be diagnosed before a repair is recommended. Neese provides AC diagnostic and repair service to identify why an air conditioner is running but not cooling.

If your AC is running but not cooling, turning the system off can be appropriate when it is blowing warm air, making unusual noises, leaking water, freezing up, or showing other signs of a malfunction. Continuing to operate a system with certain problems can worsen the issue. Check the thermostat and air filter for obvious problems, then contact an HVAC professional if the system still is not cooling properly.

If your AC is broken, close blinds or curtains during the hottest part of the day, limit oven and other heat-producing appliance use, use fans to circulate air, keep exterior doors and windows closed when outdoor air is hotter, and stay hydrated. If indoor temperatures become unsafe—especially for children, older adults, pets, or people sensitive to heat—move to a cooler location while the AC is being repaired. Neese provides AC repair service for cooling-system breakdowns.

An air conditioner may not turn on because of a thermostat setting or failure, tripped circuit breaker, blown fuse, clogged condensate drain or triggered safety switch, loss of power to the equipment, wiring problem, or a failed AC component. Check the thermostat settings and electrical panel first. If the system will not start—or a breaker trips repeatedly—an HVAC technician should diagnose the problem rather than repeatedly resetting the circuit.