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Indoor unit EEPROM parameter error
Inverter module (IPM) malfunction
Outdoor temperature sensor(coil
sensor T3 or ambient temperature
sensor T4) malfunction or Outdoor
unit EEPROM parameter error
Outdoor fan speed malfunction
Indoor fan speed malfunction
Over-voltage or under-voltage
protection
Current overload protection
Compressor drive malfunction
Indoor units mode conflict
★ flash at 2.5Hz, light, X extinguished, , ◎flash at 0.5Hz
For Old Vertu/Luna Series
MS9AI-07HRDN1-M, MS9AI-09HRDN1-M(A),MS9AI-12HRDN1-M,MS9AI-18HRDN1-M;
MSV1I-09HRDN1-M, MSV1I-12HRDN1-M, MSV1I-18HRDN1-M;
Indoor unit EEPROM parameter error
Communication malfunction between indoor and
outdoor units error
Zero-crossing signal detection error
Indoor fan speed malfunction
Outdoor temperature sensor(coil sensor T3 or
ambient temperature sensor T4) malfunction or
Outdoor unit EEPROM parameter error sensor
Indoor room temperature sensor(room sensor T1
or coil sensor T2) malfunction
Outdoor fan speed malfunction
Inverter module (IPM) malfunction
Over-voltage or under-voltage protection
High temperature protection of compressor top
(OLP)
Low ambient temperature cut off in heating
Compressor drive malfunction
Indoor units mode conflict
For All new models(New Wall mounted(Hi-Wall) series, New Duct/Cassette/Console/Floor
Ceiling):
1) Oasis: