What each Klimaire code means — and what to do next. Stuck? AAA Comfort Air fixes Klimaire systems across Central NJ, often same-day.
Klimaire ductless mini-splits are efficient and quiet, but like any system they occasionally act up. When they do, the indoor unit signals the problem so it can be pinpointed quickly — and AAA Comfort Air services Klimaire systems across Central NJ.
The indoor unit shows a code (E = protection/communication, F = sensor/refrigerant, H = system protection) on its display or by blinking the LED. The indicator is a E / F / H code on the indoor display or blinking LED.
| Code | What it means | What to do |
|---|---|---|
| E5 | Overcurrent / voltage protection | Check your power supply — call us |
| E6 | Indoor–outdoor communication error | Wiring — call us |
| F0 | Low refrigerant / leak | Needs an EPA-certified tech — call us |
| F1 | Indoor ambient sensor fault | Call us |
| F2 | Indoor coil sensor fault | Call us |
| H6 | No indoor fan feedback (fan blocked / motor) | Call us |
⚠️ Codes can vary by model and control-board revision — always confirm against the label inside your unit’s access panel. For any gas, electrical, or refrigerant fault, call a licensed technician.
The indoor unit shows a code (E = protection/communication, F = sensor/refrigerant, H = system protection) on its display or by blinking the LED.
You can try one power cycle at the breaker to clear a one-time fault. But if the same code returns, it’s a real fault — repeatedly resetting a gas or electrical issue can be unsafe. Call AAA Comfort Air at 609-665-3022.
AAA Comfort Air installs and repairs Klimaire systems across Cream Ridge and Central New Jersey, with same-day and 24/7 emergency service. Call 609-665-3022.
Book online or call your local Klimaire HVAC team — same-day & 24/7 emergency service.
