Your Umbra(JPB) R32 Series system is equipped with an advanced self-diagnostic function. To help identify a potential issue, the system will display a specific "error code"—usually a combination of letters and numbers—on the indoor or outdoor unit.
This guide is designed to help you accurately interpret these codes. Please find your code in the table below to see its meaning and link to the correct solution.
This guide applies to the following Umbra(JPB) R32 Series models:
9K1VR-19S-JPB-I+O
12K2VR-17S-JPB-I+O
12K1VR-20S-JPB-I+O
18K2VR-17S-JPB-I+O
| Code | Reason |
| E0 | Overcurrent Protection of Indoor Unit |
| E1 | Indoor Unit temperature sensor error |
| E2 | Outdoor Unit coil sensor error |
| E3 | Indoor Unit coil sensor error |
| E4 | Indoor Unit motor error of wall mounted air conditioner (PG motor) |
| E4 | Indoor Unit motor error of wall mounted air conditioner (DC motor) |
| E5(5E) | Indoor Unit and Outdoor Unit communication error |
| Eb | Indoor EE Failure |
| F0 | Outdoor Unit DC motor error (3-core terminal motor) |
| F1 | Module protection error |
| F2 | PFC protection error |
| F3 | Compressor startup error |
| F4 | Discharge sensor error |
| F5 | Compressor top head sensor error |
| F6 | Outdoor Unit temperature sensor error |
| F7 | OVP or UVP error |
| F8 | Outdoor Unit main PCB and module panel communication error |
| F9 | Outdoor EE error |
| FA | Recirculated sensor error (four-way valve switch error) |
| P2 | High-pressure protection( only floor standing) |
| P3 | Liquid Deficiency Protection |
| P4 | Refrigeration Overload Protection |
| P5 | Discharge Protection |
| P6 | Indoor High Temperature Protection |
| P7 | Anti-freezing Protection in Refrigeration Room |
| P8 | Overcurrent Protection |
| L0 | DC Over/Under-voltage Failure |
| L1 | Overcurrent Protection on Phase Current of Compressor |
| L2 | Out-of Step Failure of Compressor |
| L3 | Phase Failure of Compressor |
| L4 | Driver Module IPM Failure of Compressor |
| L5 | PFC Overcurrent Hardware Protection |
| L6 | PFC Overcurrent Software Protection |
| L7 | AD Abnormal Protection in Current Detection |
| LC | AD Abnormal Protection in PFC Current Detection |
| Ld | Dc fan motor detection AD abnormal protection |
| L8 | Shunt Resistance Imbalance Failure |
| L9 | IPM Temperature Sensor Failure |
| LA | Compressor Startup Failure |
| LE | DC fan motor phase error |
| LF | DC fan motor lost step protection |
| LH | DC fan motor IPM protection |
For detailed, step-by-step solutions for all the codes listed above, please view the complete troubleshooting guide.
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