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DuctlessAire Air Conditioner Error Codes

 Ductlessair Mini Split AC Error Codes

DuctlessAire Air Conditioner Error Codes
DuctlessAire Air Conditioner Error Codes

Indoor Unit Error Display;

Operation lampTimer lampDisplayLED STATUS
☆ 1 timeXE0Indoor unit EEPROM parameter error
☆ 2 timesXE1Indoor / outdoor units communication error
☆ 3 timesXE2Zero-crossing signal detection error
☆ 4 timesXE3Indoor fan speed has been out of control
☆ 5 timesXE4Indoor room temperature sensor T1 open circuit or short
circuit
☆ 6 timesXE5Evaporator coil temperature sensor T2 open circuit or
short circuit
☆ 7 timesXECRefrigerant leakage detection
☆ 2 timesOF1Outdoor temperature sensor T4 open circuit or short
circuit
☆ 3 timesOF2Condenser coil temperature sensor T3 open circuit or
short circuit
☆ 4 timesOF3Compressor discharge temperature sensor T5 open
circuit or short circuit
☆ 5 timesOF4Outdoor unit EEPROM parameter error
☆ 6 timesOF5Outdoor fan speed has been out of control（only for）
☆ 1 times☆P0IPM malfunction or IGBT over-strong current protection
☆ 2 times☆P1Over voltage or over low voltage protection
☆ 3 times☆P2High temperature protection of compressor top diagnosis
and solution(only for MS11D-21HRDN1-MN5Q1W model)
☆ 5 times☆P4Inverter compressor drive error

 

Error Code: P4

Malfunction decision conditions: An abnormal inverter compressor drive is detected by a special detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on.

Error Code: P2

Malfunction decision conditions: If the sampling voltage is not 5V, the LED will display the failure.

Error Code: P1

Malfunction decision conditions: An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit.

Error Code: P0

Malfunction decision conditions: When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show “P0” and AC will turn off.

Error Code: EC

Malfunction decision conditions: Define the evaporator coil temp.T2 of the compressor just starts running as Tcool.

Error Code: E5

Malfunction decision conditions: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure.

Error Code: E3

Malfunction decision conditions: When indoor fan speed keeps too low (300RPM) for certain time, the unit will stop and the LED will display the failure.

Error Code: E2

Malfunction decision conditions: When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal.

Error Code: E1

Malfunction decision conditions: Indoor unit does not receive the feedback from outdoor unit during 110 seconds and this condition happens four times continuously.

Error Code: E0/F4

Malfunction decision conditions: Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip.

DuctlessAire Air Conditioner Unit Parts
DuctlessAire Air Conditioner Unit Parts

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