Indoor Unit Error Display - Midea MS11M-09HRFN1-BW0W Service Manual

9.1 Indoor Unit Error Display

Operation
lamp
☆ 1 time
☆ 2 times
☆ 3 times
☆ 4 times
☆ 5 times
☆ 6 times
☆ 7 times
☆ 1 times
☆ 2 times
☆ 3 times
☆ 4 times
☆ 5 times
☆ 6 times
☆ 1 times
☆ 2 times
☆ 3 times
☆ 4 times
☆ 5 times
☆ 7 times
*P3
1) In heating mode, when the outdoor temperature is lower than -25℃ for 1 hour, the indoor unit
display error code P3.
2) If the outdoor temperature is higher than -22℃ for 10 minutes and compressor stop for 1 hour or
outdoor temperature is higher than -5℃ for 10 minutes, then the unit will return to work.
* Fault Symptom: The display board shows a garbled code or a code that is not an error code found
in the service manual nor a temperature reading.
Trouble shooting:
Use the remote controller. If the unit does not respond to the remote, the indoor PCB needs to be
replaced; if the unit does respond, then the display board needs to be replaced.
Timer lamp Display
X E0
X E1
X E2
X E3
X E4
X E5
X EC
O F0
O F1
O F2
O F3
O F4
O F5
☆
P0
☆
P1
☆
P2
☆
P3*
☆
P4
☆
P6
O（light）
LED STATUS
Indoor unit EEPROM parameter error
Indoor / outdoor units communication error
Zero-crossing signal detection error
Indoor fan speed has been out of control
Indoor room temperature sensor T1 open circuit or short
circuit
Evaporator coil temperature sensor T2 open circuit or
short circuit
Refrigerant leakage detection
Overload current protection
Outdoor ambient temperature sensor T4 open circuit or
short circuit
Condenser coil temperature sensor T3 open circuit or
short circuit
Compressor discharge temperature sensor TP open
circuit or short circuit
Outdoor unit EEPROM parameter error
Outdoor fan speed has been out of control
IPM malfunction or IGBT over-strong current protection
Over voltage or over low voltage protection
High temperature protection of IPM module
Outdoor ambient temperature too low.
Inverter compressor drive error
Low pressure protection(Only for 36K)
☆（flash）
X（off）
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