Troubleshooting; Indoor Unit Error Display - Midea 9ASI-A-1209 Service Manual

9. Troubleshooting

9.1 Indoor Unit Error Display

Display
E0
E1
E2
E3
E4
E5
EC
F1
F2
F3
F5
P0
P1
P4
Note: E4 & P3: Reserved function.
LED STATUS
EEPROM parameter error
Indoor / outdoor units communication protection
Zero-crossing signal error(except MS9A-24HRDN1-QRC4W)
Indoor fan speed has been out of control
Indoor room temperature sensor open circuit or short circuit
Evaporator coil temperature sensor open circuit or short circuit
Refrigerant leakage detection
Outdoor ambient temperature sensor open circuit or short circuit
Condenser coil temperature sensor open circuit or short circuit
Compressor discharge temperature sensor open circuit or short circuit
Outdoor fan speed has been out of control
IPM malfunction or IGBT over-strong current protection
Over voltage or too low voltage protection
Inverter compressor drive error
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