Troubleshooting
Samsung Electronics
73
CODE
Explanation
E-101
Indoor unit communication error. Indoor unit can not receive any data from outdoor unit.
E-102
Communication error between indoor unit and outdoor unit. Displayed in indoor unit.
E-108
Error due to repeated address setting (When 2 or more devices have same address within the network)
E-121
Error on indoor temperature sensor of indoor unit (Short or Open)
E-122
Error on EVA IN sensor of indoor unit (Short or Open)
E-123
Error on EVA OUT sensor of indoor unit (Short or Open)
E-128
EVA IN temperature sensor of indoor unit is detached from EVA IN pipe
E-129
EVA OUT temperature sensor of indoor unit is detached from EVA OUT pipe
E-130
Heat exchanger in/out sensors of indoor unit are detached
E-135
RPM feedback error of indoor unit's cleaning fan
E-149
Error due to AHU master indoor unit sensor setting.
E-151
Error due to opened EEV of indoor unit (2nd detection)
E-152
Error due to closed EEV of indoor unit (2nd detection)
E-153
Error on floating switch of indoor unit (2nd detection)
E-154
RPM feedback error of indoor unit
E-161
Mixed operation mode error of indoor unit; When outdoor unit is getting ready to operate in cooling (or heating)
and some of the indoor unit is trying to operate in heating (or cooling) mode
E-162
EEPROM error of MICOM (Physical problem of parts/circuit)
E-163
Indoor unit's remote controller option input is Incorrect or missing.
Outdo or unit EEPROM data error
E-180
Simultaneous opening of cooling/heating MCU SOL V/V (1st detection)
E-181
Simultaneous opening of cooling/heating MCU SOL V/V (2nd detection)
E-185
Cross wiring error between communication and power cable of indoor unit
E-186
Connection error or problem on SPi
E-190
No temperature changes in EVA IN during pipe inspection or changes in temperature is seen in indoor unit with
wrong address
E-191
No temperature changes in EVA OUT during pipe inspection or changes in temperature is seen in indoor unit with
wrong address
E-198
Error due to disconnected thermal fuse of indoor unit (Temperature increase of the therminal block)
E-201
Communication error between indoor and outdoor units (installation number setting error, repeated indoor unit
address, indoor unit communication cable error)
E-202
Communication error between indoor and outdoor units (Communication error on all indoor unit, outdoor unit
communication cable error)
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Diagnosis and Adjustment (Error Code)
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Error code related indoor unit
4-2 Service Operation (cont.)
4-2-3 Number Display Method (Outdoor Unit, MCU, Cable remote control, wall-mount, etc.)
