| Error Code | Error Description | Reset |
|---|
| A0 | AC Over Voltage Error | Auto |
| A1 | AC Under-Voltage Error | Auto |
| A2 | Single Phasing Error | Auto |
| A7 | Phase Imbalance Error | Auto |
| b0 | Inv Compressor 1 Over Load Error | Auto |
| b1 | Inv Compressor 2 Over Load Error | Auto |
| b6 | Inv Compressor 1 Over Current Error | Auto |
| b7 | Inv Compressor 2 Over Current Error | Auto |
| b8 | Inverter Drive 1 Over Heat Error | Auto |
| b9 | Inverter Drive 1 Over Heat Error | Auto |
| bA | Inverter Drive 1 Start Error | Auto |
| bb | Inverter Drive 2 Start Error | Auto |
| bC | ODU Fan Motor 1 Feedback Error | Auto |
| bd | ODU Fan Motor 1 Feedback Error | Auto |
| C1 | Communication Error (Between ODU Control Board & | Manual |
| ODU Power Board) | Check |
| C2 | Communication Error (Between ODU Control Board & | Manual |
| ODU Fan Board) | Check |
| C3 | Communication Error (Between Master and slave ODUs) | Manual |
| | Check |
| C4 | Communication Error (Between Master and slave IDUs) | ON IDUs supply |
| | & Manual Check |
| C5 | Communication Error (Between IDUs & Wired Handset Remote) | Manual |
| | Check |
| C6 | Auto-Addressing Error | Manual |
| | Check |
| C7 | Communication Error( Inverter Drive 1) | Manual |
| | Check |
| C8 | Communication Error( Inverter Drive 2) | Manual |
| | Check |
| C9 | Communication Error on some other IDU | Manual |
| (Displayed on IDUs without communication error) | Check |
| d0 | Inverter Drive 1 DC Over Voltage error | Auto |
| d1 | Inverter Drive 2 DC Oveer Voltage error | Auto |
| d2 | Inverter Drive 1 DC Under Voltage error | Auto |
| d3 | Inverter Drive 2 DC Under Voltage error | Auto |
| d8 | Inverter Drive 1 Over Heat Error | Manual |
| d9 | Inverter Drive 2 Over Heat Error | Manual |
| dA | Inverter Drive 1 Start error | Manual |
| db | Inverter Drive 2 Start error | Manual |
| dC | Inv Compressor 1 Over Current Error | Manual |
| dd | Inv Compressor 2 Over Current Error | Manual |
| dE | Inverter Drive Mismatch Error | Manual |
| E1 | HP Switch Trip error | Auto |
| E2 | HP Switch Trip for 3rd time in One Hour | Manual |
| E3 | L P Error | Auto |
| E4 | LP Error for 3rd time | Manual |
| E5 | Inv Compressor 1 High DLT (Discharge Line Temperature) | Auto |
| E6 | Inv Compressor 2 High DLT (Discharge Line Temperature) | Auto |
| E8 | Inv Compressor 1 High DLT (Discharge Line Temperature) for 4th time | Manual |
| E9 | Inv Compressor 2 High DLT (Discharge Line Temperature) for 4th time | Manual |
| Eb | ODU Fan Motor 1 feedback Error | Manual |
| EE | ODU Fan Motor 2 feedback Error | Manual |
| EC | Inv Compressor 1 Over Load Error | Manual |
| Ed | Inv Compressor 2 Over Load Error | Manual |
| F1 | Ambient Temp. Sensor Failure | Manual Check |
| F2 | DLT (Discharge Line Temperature) Inv. Compressor 1 Sensor Failure | Manual Check |
| F3 | DLT (Discharge Line Temperature) Inv. Compressor 2 Sensor Failure | Manual Check |
| F5 | ODU Liq. Temp. (Hex1) Sensor Failure | Manual Check |
| F6 | ODU Gas Temp. (Hex1) Sensor Failure | Manual Check |
| F7 | ODU Liq. Temp. (Hex1) Sensor Failure | Manual Check |
| F8 | ODU Gas Temp. (Hex1) Sensor Failure | Manual Check |
| F9 | HP Sensor Failure | Manual Check |
| FA | LP Sensor Failure | Manual Check |
| Fb | Fire Alarm from ODU | Manual Check |
| Fc | Fire Alarm from IDU | Manual Check |
| U3 | IDU Room Temp Sensor Failure (Displayed on IDU) | Manual Check |
| U4 | IDU Liquid Temp Sensor Failure (Displayed on IDU) | Manual Check |
| U5 | IDU Gas Temp Sensor Failure (Display on IDU) | Manual Check |
| U6 | IDU Supply Temp Sensor Failure (Display on IDU) | Manual Check |
| U7 | IDU Float Switch Error (Display on IDU) | Manual Check |
| U8 | IDU Fan Motor Error (Display on IDU) | Manual Check |
| U9 | Mode conflict Error (Display on IDU) | Manual Check |
