Samsung AHU HVAC System Error Codes
High-Efficiency HVAC System.
12 error codes documented.
Severity breakdown:
12 warning
Error Codes
| Code | Description | Severity |
| E1 | Communication Error | Warning |
| E1-21 | Compressor Overcurrent | Warning |
| E1-54 | IPM Fault | Warning |
| E2 | Room Temp Sensor Fault | Warning |
| E2-14 | Freeze Protection Active | Warning |
| E3 | Indoor Coil Sensor Fault | Warning |
| E4 | Outdoor Coil Sensor Fault | Warning |
| E4-64 | High Pressure Trip | Warning |
| E4-65 | Low Pressure Trip | Warning |
| E5 | Inverter Overcurrent | Warning |
| E6 | Outdoor Fan Motor Fault | Warning |
| E7 | Indoor Fan Motor Fault | Warning |
Cross-Reference: Shared Codes with Other Samsung Models