Rinnai Error Codes
Every Rinnai error code we have catalogued, with what it means on site — 30 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 Rinnai codes
| Code | What it means |
|---|---|
| E0 | Indoor EEPROM parameter error |
| E1 | Room temperature sensor fault |
| E2 | Indoor coil sensor (mid) fault |
| E3 | Indoor coil sensor (inlet) fault |
| E4 | Indoor fan motor (PG) speed fault |
| E5 | Indoor/outdoor communication mismatch |
| E6 | Main communication failure |
| E7 | Indoor coil sensor (outlet) fault |
| E8 | Electrostatic dust filter fault |
| E9 | Inverter module / IPM protection |
| F0 | Outdoor DC fan motor fault |
| F1 | Compressor discharge sensor fault |
| F2 | Outdoor coil sensor fault |
| F3 | Outdoor liquid pipe sensor fault |
| F4 | Outdoor ambient temp sensor fault |
| F5 | Compressor discharge overheat protection |
| F6 | Outdoor coil overheat protection |
| F7 | Suction pipe sensor fault |
| F8 | Outdoor EEPROM parameter error |
| EF | Outdoor fan motor (general) fault |
| P0 | IPM hardware protection (overcurrent) |
| P1 | Over/under voltage protection |
| P2 | Compressor top temperature lockout |
| P3 | Outdoor low ambient temp protection |
| P4 | Inverter drive circuit failure |
| P5 | Total current overload protection |
| P6 | Discharge high pressure/temp protection |
| P7 | Fin sensor overheat (IPM cooling) |
| P8 | Inverter module fault (soft) |
| P9 | Compressor phase sequence fault |
Official Rinnai source / manual ↗
Frequently asked
What does Rinnai error code E0 mean?
Rinnai error code E0 means: Indoor EEPROM parameter error. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Rinnai error code E1 mean?
Rinnai error code E1 means: Room temperature sensor fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Rinnai error code E2 mean?
Rinnai error code E2 means: Indoor coil sensor (mid) fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Rinnai error code E3 mean?
Rinnai error code E3 means: Indoor coil sensor (inlet) fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Rinnai error code E4 mean?
Rinnai error code E4 means: Indoor fan motor (PG) speed fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Rinnai error code E5 mean?
Rinnai error code E5 means: Indoor/outdoor communication mismatch. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Rinnai error code E6 mean?
Rinnai error code E6 means: Main communication failure. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Rinnai error code E7 mean?
Rinnai error code E7 means: Indoor coil sensor (outlet) fault. 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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