Ballu Error Codes
Every Ballu error code we have catalogued, with what it means on site — 29 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 Ballu codes
- E1 — Internal temp sensor malfunction/short
- E2 — External temp sensor malfunction/short
- E3 — Condenser temp sensor malfunction/short
- E4 — Evaporator temp sensor malfunction/short
- E5 — System protection / outdoor fault
- E6 — Outdoor protection tripped / indoor fan fault
- E8 — Electrostatic filter error
- P4 — Evaporator sensor / compressor disabled
| Code | What it means |
|---|---|
| E1 | Internal temp sensor malfunction/short |
| E2 | External temp sensor malfunction/short |
| E3 | Condenser temp sensor malfunction/short |
| E4 | Evaporator temp sensor malfunction/short |
| E5 | System protection / outdoor fault |
| E6 | Outdoor protection tripped / indoor fan fault |
| E8 | Electrostatic filter error |
| P4 | Evaporator sensor / compressor disabled |
| P5 | Capacitor sensor malfunction / temp fluctuation |
| P6 | Heat exchanger frozen / defrosting |
| 01 (Indoor) | Indoor: room temp sensor fault |
| 02 (Indoor) | Indoor: HX temp sensor fault |
| 03 (Indoor) | Indoor: HX frozen/icing |
| 04 (Indoor) | Indoor: HX temp exceeds limit |
| 05 (Indoor) | Indoor: communication interrupted |
| 08 (Indoor) | Indoor: fan motor defective |
| 01 (Outdoor) | Outdoor: ambient sensor fault |
| 02 (Outdoor) | Outdoor: HX temp sensor fault |
| 03 (Outdoor) | Outdoor: compressor overheat/overload |
| 04 (Outdoor) | Outdoor: capillary A sensor fault |
| 05 (Outdoor) | Outdoor: capillary B sensor fault |
| 06 (Outdoor) | Outdoor: overcurrent protection |
| 07 (Outdoor) | Outdoor: no load / compressor disconnected |
| 08 (Outdoor) | Outdoor: abnormal voltage |
| 09 (Outdoor) | Outdoor: instant power interruption |
| 10 (Outdoor) | Outdoor: overloading during cooling |
| 11 (Outdoor) | Outdoor: defrost in process |
| 12 (Outdoor) | Outdoor: IPM module defective |
| 13 (Outdoor) | Outdoor: EEPROM corrupted |
Official Ballu source / manual ↗
Frequently asked
What does Ballu error code E1 mean?
Ballu error code E1 means: Internal temp sensor malfunction/short. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Ballu error code E2 mean?
Ballu error code E2 means: External temp sensor malfunction/short. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Ballu error code E3 mean?
Ballu error code E3 means: Condenser temp sensor malfunction/short. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Ballu error code E4 mean?
Ballu error code E4 means: Evaporator temp sensor malfunction/short. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Ballu error code E5 mean?
Ballu error code E5 means: System protection / outdoor fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Ballu error code E6 mean?
Ballu error code E6 means: Outdoor protection tripped / indoor fan fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Ballu error code E8 mean?
Ballu error code E8 means: Electrostatic filter error. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Ballu error code P4 mean?
Ballu error code P4 means: Evaporator sensor / compressor disabled. In R-Pro you also get the likely causes and the inspection steps — offline.
Look up any error code — offline — in R-Pro.
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