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.
Common AUX codes
- 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
| 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 ↗
Frequently asked
What does AUX error code E0 mean?
AUX error code E0 means: IDU over-current protection. In R-Pro you also get the likely causes and the inspection steps — offline.
What does AUX error code E1 mean?
AUX error code E1 means: Plastic temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does AUX error code E2 mean?
AUX error code E2 means: Outdoor copper temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does AUX error code E3 mean?
AUX error code E3 means: Indoor copper temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does AUX error code E4 mean?
AUX error code E4 means: PG motor feedback abnormal. In R-Pro you also get the likely causes and the inspection steps — offline.
What does AUX error code E6 mean?
AUX error code E6 means: Over-current protection. In R-Pro you also get the likely causes and the inspection steps — offline.
What does AUX error code EC mean?
AUX error code EC means: Refrigerant leakage detection. In R-Pro you also get the likely causes and the inspection steps — offline.
What does AUX error code F1 mean?
AUX error code F1 means: Outdoor ambient sensor T4 open/short. In R-Pro you also get the likely causes and the inspection steps — offline.
Look up any error code — offline — in R-Pro.
Open R-Pro →