AUX Error Codes
Every AUX error code we have catalogued, with what it means on site — 8 codes in total. In R-Pro, tap any code to get the meaning, likely causes and inspection steps, even with no signal in the plant room.
8 codes
| Code | What it means |
|---|---|
| E0 | IDU over-current protection |
| E1 | Plastic temperature sensor malfunction |
| E2 | Outdoor copper temperature sensor malfunction |
| E3 | Indoor copper temperature sensor malfunction |
| E4 | PG motor feedback abnormal |
| E6 | Over-current protection |
| EC | Refrigerant leakage detection |
| F1 | Outdoor ambient sensor T4 open/short |
Official AUX source / manual ↗
Look up any error code — offline — in R-Pro.
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