42
Error codes
If the unit has some problems and does not work normally, error code is shown on the OUTDOOR UNIT main PBA or LCD
of the wired remote controller.
Display
Explanation
Error Source
101
CONTROL KIT / OUTDOOR UNIT wire connection error
CONTROL KIT,
OUTDOOR UNIT
120
Short- or open-circuit error of the room temperature sensor of the Zone 2 indoor unit
(detected only when the room thermostat is used)
CONTROL KIT
121
Short- or open-circuit error of the room temperature sensor of the Zone 1 indoor unit
(detected only when the room thermostat is used)
CONTROL KIT
162
EEPROM Error
CONTROL KIT
198
Error of Terminal Block's Thermal Fuse(Open)
CONTROL KIT
201
CONTROL KIT/OUTDOOR UNIT communication error (Matching error)
CONTROL KIT,
OUTDOOR UNIT
202
CONTROL KIT/OUTDOOR UNIT communication error (3 min)
CONTROL KIT,
OUTDOOR UNIT
203
Communication error between INVERTER and MAIN MICOM (6 min)
OUTDOOR UNIT
221
OUTDOOR UNIT temperature sensor error
OUTDOOR UNIT
231
Condenser temperature sensor error
OUTDOOR UNIT
251
Discharge temperature sensor error
OUTDOOR UNIT
320
OLP sensor error
OUTDOOR UNIT
403
Detection of OUTDOOR UNIT compressor freezing (During cooling operation)
OUTDOOR UNIT
404
Protection of OUTDOOR UNIT when it is overload (during Safety Start, Normal
operation state)
OUTDOOR UNIT
407
Comp down due to high pressure
OUTDOOR UNIT
416
Discharge of a compressor is overheated
OUTDOOR UNIT
425
Power source line missing error (only for 3-phase model)
OUTDOOR UNIT
440
Heating operation blocked (outdoor temperature over 35°C)
OUTDOOR UNIT
441
Cooling operation blocked (outdoor temperature under 9°C)
OUTDOOR UNIT
458
OUTDOOR UNIT fan1 error
OUTDOOR UNIT
461
[Inverter] Compressor startup error
OUTDOOR UNIT
462
[Inverter] Total current error/PFC over current error
OUTDOOR UNIT
463
OLP is overheated
OUTDOOR UNIT
464
[Inverter] IPM over current error
OUTDOOR UNIT
465
Compressor V limit error
OUTDOOR UNIT
466
DC LINK over/low voltage error
OUTDOOR UNIT
467
[Inverter] Compressor rotation error
OUTDOOR UNIT
468
[Inverter] Current sensor error
OUTDOOR UNIT