Troubleshooting
4-50
Samsung Electronics
4-4-5 Error Code
No.
Code
Description
1
E-101
Communication error in indoor unit. It displays when the indoor unit receives no data from the outdoor unit.
2
E-102
Communication error between indoor and outdoor unit. It displays in indoor unit.
3
E-121
Room temperature sensor of indoor unit . (Open or Short )
4
E-122
Eva_in temperature sensor of indoor unit. (Open or Short )
5
E-123
Eva_out temperature sensor of indoor unit. (Open or Short )
6
E-124
Communication error between indoor and outdoor unit. It displays in outdoor unit.
7
E-125
Mid 2 temperature sensor of indoor unit. (Open or Short )
8
E-128
Eva_in temperature sensor is detached from eva_in pipe of indoor unit.
9
E-129
Eva_out temperature sensor is detached from eva_out pipe of indoor unit.
10
E-130
Eva_in and eva_out temperature sensor are detached from eva_in and out pipe of indoor unit at the same time.
11
E-137
VOC sensor of ERV product. (Open or Short )
12
E-138
Gas sensor of ERV product. (Open or Short )
13
E-139
CO2 sensor of ERV product. (Open or Short )
14
E-151
EEV opening error of indoor unit (2nd detection )
15
E-152
EEV closing error of indoor unit (2nd detection )
16
E-153
Floating switch error of indoor unit (2nd detection )
17
E-154
RPM feed back error of indoor unit.
18
E-155
RPM feed back error of indoor unit. (The second motor of indoor unit )
19
E-161
Mixed operation mode of indoor units. It occurs when outdoor unit is operating or going to operate in cooling
mode. or heating mode) and then other indoor unit is going to operate in heating mode ( or cooling mode ).
20
E-162
EEPROM error of MICOM. (Physical damage )
21
E-163
Option code error of indoor unit's EEPROM.
22
E-137
Option setting error of indoor unit's dip switch.
23
E-170
Temperature display setting error for USA market product. (Mixed setting with Celsius and Fahrenheit
temperature )
24
E-180
Opening error of cooling and heating solenoid valve simultaneously in MCU (1st detection )
25
E-181
Opening error of cooling and heating solenoid valve simultaneously in MCU (2nd detection )
26
E-185
Cross wiring error between communication and power of indoor unit.
27
E-190
No matching between indoor unit's address and eva_in sensor in pipe checking operation.
28
E-191
No matching between indoor unit's address and eva_out sensor in pipe checking operation.
29
E-199
It displays when pipe checking operation is not operated.
30
E-201
Communication error between indoor and outdoor unit ( Tracking failure or the setting quantity/address of
indoor unit in outdoor unit's PCB differs from the quantity/address of installed indoor unit. )
31
E-202
Communication error between indoor and outdoor unit.(All the indoor communication error, outdoor
communication cable error.)
32
E-203
Communication error between main and sub micom or communication error between main and sub outdoor
units.
33
E-204
The setting quantity of MCU in outdoor unit's PCB differs from the quantity of installed MCU.
34
E-206
Communication error between main and sub PCB
35
E-210
Communication error between MCU and outdoor unit.
36
E-211
Indoor unit's address overlapped on the MCU.
37
E-212
If same indoor unit address was assigned more than 3 times on MCU.
38
E-213
No matching between indoor unit's address and indoor unit's activating dip switch on the MCU.
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