Air conditioner errors Indoor unit pioneer
| Air conditioner error code Pioneer | Yellow diode | Green diode | Red diode | Pioneer air conditioner error decoding |
| E0 | * | The function of the discharge temperature sensor is broken | ||
| E6 | * | The function of the condenser temperature sensor is broken | ||
| E6 | * | The function of the outdoor air temperature sensor is broken | ||
| E1 | * | The function of the temperature sensor in the room is broken | ||
| E2 | * | The function of the evaporator temperature sensor is broken | ||
| E3 | m | m | m | Indoor unit fan broken |
| E4 | m | * | IPM system failure | |
| E5 | m | m | Power outage | |
| E8 | * | m | m | Violation of voltage supply |
| E9 | m | The compressor did not start correctly | ||
| EA | * | Incorrect communication with the outdoor unit | ||
| The EU | m | * | The air conditioner is supplied with an electrical current of unacceptable parameters | |
| HER | EEPROM failure | |||
| EP | No communication between outdoor and indoor modules | |||
| P0 | Unit started incorrectly | |||
| Р1 | Discharge overheating | |||
| P2 | Increased current in the circuit | |||
| P3 | Mains voltage too high | |||
| P4 | m | m | * | No communication with the current relay |
| P5 | Evaporator overheating | |||
| P6 | Overheating of the condenser | |||
| P7 | IPM Matrix Protection |
*- the diode is on, m - the diode blinks.
Outdoor unit Pioneer air conditioner error codes
The outdoor unit has a red LED, which normally blinks like this: once from the ON side, once from the OFF side. If a malfunction is detected, the diode blinks twice on the OFF side and three times on the ON side.
After that, the frequency of blinking increases, and their mode will correspond to the error code of the Pioneer air conditioner.
| Pioneer air conditioner error code (number of diode blinks) | Decoding the air conditioner error Pioneer |
| 1 | No communication with the external temperature sensor |
| 2 | No communication with the condenser temperature sensor |
| 3 | No communication with the discharge temperature sensor |
| 4 | The current in the mains is too high |
| 5 | Mains voltage too high |
| 7 | No communication with indoor unit |
| 9 | The unit has not been started up correctly |
| 12 | Mains voltage exceeded |
| 13 | IPM board protection |
| 16 | Excess compressor temperature |
| 17 | Discharge temperature is too high |
| 18 | Condenser temperature too high |
| 19 | Failure of the IPM card |
| 20 | Indoor and outdoor communication failure |
| 22 | De-icing |
