HVAC Repair

HVAC Repair in Jacksonville, FL

When your heating or cooling system breaks down, Air Systems And Controls LLC provides reliable HVAC repair services throughout the Jacksonville area.

HVAC repair technician at work

A malfunctioning HVAC system can disrupt your home or business quickly. Air Systems And Controls LLC provides HVAC repair services for residential and commercial customers throughout Jacksonville, Jacksonville Beach, Orange Park, and surrounding areas.

Licensed & Insured · FL License CAC1818883
Common HVAC Problems We Fix

System Not Cooling

If your air conditioner is running but not cooling your space, there may be a refrigerant issue, compressor problem, or other mechanical failure.

System Not Heating

A furnace or heat pump that isn't producing heat can leave your home or business uncomfortable. We diagnose and repair heating system failures.

System Failures

Complete system failures require prompt attention. We respond to HVAC system failures and work to restore operation as quickly as possible.

Unexpected Breakdowns

HVAC systems can break down without warning. We provide repair services to get your system back up and running.

Poor System Performance

If your system is running but not performing as expected — uneven temperatures, high energy bills, unusual noises — we can diagnose the cause.

Airflow Issues

Weak or uneven airflow is one of the most common HVAC complaints and can stem from several causes — a failing blower motor, collapsed or disconnected ductwork, a heavily restricted filter, or blocked supply and return registers. In commercial systems, imbalanced static pressure across air handling units can cause some zones to be over-conditioned while others receive little to no airflow. Left unaddressed, airflow problems force the system to run longer cycles to compensate, increasing wear on the compressor and driving up energy costs. We diagnose airflow issues at the equipment level and throughout the duct system to identify the root cause and restore proper distribution.

Mechanical Breakdowns

HVAC systems rely on a number of mechanical components that wear over time — capacitors, contactors, fan motors, blower assemblies, reversing valves, and compressors. A failed capacitor can prevent a motor from starting; a worn contactor can cause intermittent operation or complete loss of the cooling or heating stage. These failures often happen without warning, particularly during periods of heavy use when equipment is under the most stress. We carry common replacement parts and can diagnose mechanical failures quickly to minimize downtime for both residential and commercial customers.

Refrigerant Leaks

A refrigerant leak does not just reduce cooling capacity — it puts the compressor at risk. As refrigerant charge drops, the compressor runs hotter and works harder to move heat, accelerating wear and increasing the likelihood of a compressor failure. Leaks typically develop at service valve cores, flare fittings, or along the evaporator coil where vibration and corrosion are most common. Simply adding refrigerant without locating and repairing the leak is a short-term fix that leads to repeat service calls. Our technicians are EPA 608 certified, locate the source of the leak, make the repair, and recharge the system to the manufacturer's specified charge.

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Contact Air Systems And Controls LLC for HVAC repair in Jacksonville, FL. We serve residential and commercial customers throughout the area.