Klimaire
Loss of Cooling Capacity / Refrigerant Undercharge
Indoor unit runs but no cooling; air from vents is room temperature or only slightly cooler.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Refrigerant leak in line set flare connections, Leak in indoor evaporator coil, Leak in outdoor condenser coil, Severely dirty coils reducing heat transfer
How to Fix / Troubleshooting
Safety first: Do not attempt to open the refrigerant circuit yourself. Only licensed HVAC technicians may handle refrigerant.
- Step 1 – Check mode and setpoint: Ensure the Klimaire unit is set to COOL mode with a temperature at least 3–5°F (2–3°C) below room temperature.
- Step 2 – Verify fan speed and louvers: Set fan to HIGH and confirm louvers are open and directing air into the room.
- Step 3 – Clean filters and coils: Wash indoor filters and inspect both indoor and outdoor coils for dirt buildup. Clean as needed.
- Step 4 – Inspect for frost or ice: Look at the indoor coil for icing. Ice often indicates low refrigerant or airflow issues.
- Step 5 – Professional leak and charge check: If airflow is good but cooling is weak, contact a Klimaire-qualified technician to check refrigerant pressures, locate leaks, and recharge the system.
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Repair Difficulty
Hard
4/5
Required Part
Refrigerant Circuit (Line Set, Evaporator Coil, Condenser Coil)
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