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10. Error codes
10.1 Error Codes on Indoor unit panel
Short/open circuit of the coil temp. sensor for the
condenser (42K Unit Only)
Short/open circuit of the liquid valve temp. sensor
Short/open circuit of the suction valve temp. sensor
Incorrect connection of communication wire or
expansion valve failure
Low Pressure Protection (42K Unit Only)
Exhaust Protection (Temperature Overheat)
Communication Malfunction
Anti-Cold Blow Protection
Condensate Water Full of Indoor Unit
EEPROM malfunction (Except For 42K Unit)
Frequency Drop for Module current protection - phase
current (Except For 42K Unit)
Frequency Drop for Module temperature protection
(Except For 42K Unit)
Refrigerant Insufficiency or Blockage Protection
Indoor Ambient Sensor Failure
Indoor Tube Sensor Failure
Outdoor Ambient Sensor Failure
Outdoor Tube Sensor Failure
Outdoor Exhaust Sensor Failure
Frequency Drop for Overload (Except for 42K Unit)
Oil Return in Cooling Mode
Frequency Drop for Over Current Protection (Except for
42K Unit)
Frequency Drop for Exhaust Protection (Except for 42K
Unit)
Refrigerant Recovery Mode
Frequency Drop for Anti-Freezing Protection
(Except for 42K Unit)