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English
Appendix
Display Explanation Error Source
101 Hydro Unit / Outdoor Unit communication connection error Hydro 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)
Hydro Unit
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)
Hydro Unit
122 EVA Inlet temp sensor SHORT or OPEN Hydro Unit
123 EVA Outlet temp sensor SHORT or OPEN Hydro Unit
162 EEPROM Error Hydro Unit
ߢߪߩ Error of Terminal Block's Thermal Fuse(Open) Hydro Unit
201 Hydro Unit / Outdoor Unit communication error(Matching error)
Hydro Unit/
Ourdoor Unit
202 Hydro Unit / Outdoor Unit communication error(3 min)
Hydro Unit/
Ourdoor Unit
203 Communication error between INVERTER and MAIN MICOM (4 min) Outdoor Unit
221 Outdoor Unit air 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 Plate heat exchanger freeze detection (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 sensor Outdoor Unit
416 Discharge of a compressor is overheated Outdoor Unit
419 OUTDOOR UNIT EEV operation error Outdoor Unit
425 Power source line missing error (only for 3-phase model) Outdoor Unit
436 Plate heat exchanger freeze detection (During heating operation) Outdoor Unit
440 ²ʪɇϩ˝ͱΧʪθɇϩͱɵͱʀʪʒ࣍ͱЇϩʒͱͱθϩʪΧʪθɇϩЇθʪͱЭʪθߤߦইA࣎ Outdoor Unit
441 Aͱͱ˝ͱΧʪθɇϩͱɵͱʀʪʒ࣍ͱЇϩʒͱͱθϩʪΧʪθɇϩЇθʪЇʒʪθߪইA࣎ Outdoor Unit
ߥߦߩ OUTDOOR UNIT fan1 error Outdoor Unit
461 [Inverter] Compressor startup error Outdoor Unit
462 [Inverter] Total current error/PFC over current error Outdoor Unit
Error codes
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