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8
Error codes
No. Error code Description
34 E-210 Communication error between MCU and outdoor unit.
35 E-211 Indoor unit’s address overlapped on the MCU.
35 E-213 No matching between installed indoor unit’s address and indoor unit’s address on the MCU.
35 E-214 Setting error of MCU’s quantity in outdoor unit’s PCB
36 E-215 Indoor unit’s address setting error on the MCU. (There is same address among the MCUs)
37 E-216
Setting error of indoor unit activating dip switch on MCU’s PCB. (The indoor unit is not connected with the
MCU’s port but indoor unit activating dip switch on MCU’s PCB turns on.)
38 E-217
Setting error of indoor unit activating dip switch on MCU’s PCB. (The indoor unit is connected with the
MCU’s port but indoor unit activating dip switch on MCU’s PCB turns off.)
39 E-218
Setting error of indoor unit’s quantity on MCU’s PCB.
(The quantity of installed indoor units exceeds the setting number of the MCU’s PCB.)
40 E-221 Ambient air temperature sensor of outdoor unit. (Open or Short)
41 E-226 Ambient air temperature sensor is detached from outdoor unit.
42 E-231 Cond_out temperature sensor of main outdoor unit. (Open or Short)
43 E-236 Cond_out temperature sensor of the outdoor unit. (Open or Short)
44 E-237 Cond temperature sensor of outdoor unit. (Open or Short)
45 E-241 Cond_mid temperature sensor is detached from sensor hold of the pipe.
46 E-246 Cond_out 1 temperature sensor is detached from sensor hold of the pipe.
47 E-251 Discharge temperature sensor of compressor 1. (Open or Short)
48 E-256 Discharge temperature sensor of compressor 1. (Open or Short)
49 E-257 Discharge temperature sensor of compressor 2. (Open or Short)
50 E-258 Discharge temperature sensor of compressor 3. (Open or Short)
51 E-261 Discharge temperature sensor of compressor 1 is detached from the sensor hold of the pipe.
52 E-262 Discharge temperature sensor of compressor 1 is detached from the sensor hold of the pipe.
53 E-263 Discharge temperature sensor of compressor 2 is detached from the sensor hold of the pipe.
54 E-264 Discharge temperature sensor of compressor 3 compressor is detached from the sensor hold of the pipe.
55 E-265 Sump(Base) temperature sensor of main unit’s compressor is detached from the base of the compressor.
56 E-266 Sump(Base) temperature sensor of sub1 unit’s compressor is detached from the base of the compressor.
57 E-267 Sump(Base) temperature sensor of sub2 unit’s compressor is detached from the base of the compressor.
58 E-268 Sump(Base) temperature sensor of sub3 unit’s compressor is detached from the base of the compressor.
58 E-269 Suction temperature sensor is detached from the sensor hold of the pipe.
59 E-271 Sump(Base) temperature sensor of compressor 1. (Open or Short)
60 E-276 Sump(Base) temperature sensor of compressor 1. (Open or Short)
61 E-277 Sump(Base) temperature sensor of compressor 2. (Open or Short)
62 E-278 Sump(Base) temperature sensor of compressor 3. (Open or Short)
63 E-291 High pressure sensor. (Open or Short)
64 E-296 Low pressure sensor. (Open or Short)
65 E-307 Oil balance temperature sensor. (Open or Short)
66 E-308 Suction temperature sensor. (Open or Short)
67 E-311 Double tube / Liquid temperature sensor. (Open or Short)
68 E-312 Main cooling solenoid valve opening error.
69 E-321 EVI_in temperature sensor. (Open or Short)
70 E-322 EVI_out temperature sensor. (Open or Short)
71 E-407 Compressor stop by high pressure’s protection control.
72 E-410 Compressor stop by low pressure’s protection control.
73 E-413 Protection control by sump sensor.
74 E-416 Compressor stop by discharge temperature’s protection control.
75 E-425 Reverse phase or phase open. (3ø Wiring of outdoor unit, R-S-T-N)
76 E-428 Compressor stop by abnormal compression ratio.
77 E-431 Self-diagnosis of oil solenoid valve. (Open and Close error)
78 E-438 EVI EEV opening error.
79 E-440 Prohibition of heating operation when the ambient air temperature is over 30°C
80 E-442
Prohibition of refrigerant charging with heating operation when outdoor ambient air temperature is over 15°C.
81 E-443 Prohibition of operating when the high pressure of system is too low.
82 E-452 Power failure temporarily or zero crossing error.
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