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2. Error Code
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-109 Incomplete communication error of indoor unit address
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
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)
E-205 Communication error on all PBA within the outdoor unit C-Box, communication cable error
E-211 When single indoor unit uses 2 MCU ports that are not in series.
E-212 If the rotary switch (on the MCU) for address setting of the indoor unit has 3 or more of the same address
E-213
When total number of indoor units assigned to MCU is same as actual number of installed indoor units but there
is indoor unit that is not installed even though it is assigned on MCU
E-214
When number of MCU is not set correctly on the outdoor unit or when two or more MCU was installed some of
them have the same address
E-215 When two different MCU’s have same address value on the rotary switch
E-216 When indoor unit is not installed to a MCU port but the switch on the port is set to On.
E-217
hen indoor unit is connected to a MCU port but indoor unit is assigned to a MCU and the switch
on the port is set to Off
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