Kelvinator split AC indoor unit runs but there is no cooling; air from vents is at room temperature.

Safety: Do not attempt to open refrigerant lines. Only licensed technicians should handle refrigerant.

User checks:

• Filter and mode: Ensure filters are clean and the unit is set to Cool mode with a temperature lower than room temperature.
• Outdoor unit operation: Check if the outdoor fan and compressor are running. If the outdoor unit never starts, there may be an electrical or control issue instead.
• Check for frost or sweating: Look at the indoor coil (if visible) and the insulated suction line near the outdoor unit. Little to no condensation or frost during hot weather can indicate low refrigerant.
• Look for oil stains: Inspect flare joints and coil areas for oily residue, a common sign of leaks.

Technician tasks: Locate and repair leaks, evacuate the system, and recharge with the exact refrigerant type and weight specified on the Kelvinator nameplate.