Product specifications

Troubleshooting
Samsung Electronics 51
4-4-2 Troubleshooting for outdoor unit
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.
No.
LED Display
Displayed
PCB Assy
Meaning Remarks Error Code
Red Green Yellow
-
z|
MAIN/INVERTER
Normal operation
(MAIN : Indoor¥Outdoor : Green ON)
(INVERTER : MAIN PCB¥INVERTER PCB :
Green ON)
-
1
z|
MAIN Control Kit quantity is mismatched.
Check Control Kit quantity
setting in outdoor
E201
2
zz|
MAIN/INVERTER
Abnormal state, no communication between
Indoor and Outdoor Main PCB
Check electrical
connection and setting
E202
 | |
4
zz
MAIN/INVERTER
1min. Time out of communcation
error(Main¥Inverter)
Check electrical
connection and setting
E203
5
z|
MAIN Outdoor temp sensor error
Check Outdoor sensor
Open/Short
E221
6
z|
MAIN Cond. temp sensor error
Check Cond. sensor
Open/Short
E231
7
z|
MAIN Discharge temp sensor error
Check Discharge sensor
Open/Short
E251
8
z|
MAIN OLP Sensor Error
Check OLP sensor
Open/Short
E320
9
z|
MAIN
Detection of Outdoor Freezing when Comp.
Stop
Check Outdoor Cond. E403
10
z|
MAIN
Protection of Outdoor Overload when Comp.
Stop
Check Comp. when it start E404
11
z|
MAIN
Discharge temperature of a compressor in an
outdoor unit is overheated.
E416
12
z|
MAIN
Outdoor EEV
Open error
Check EEV E419
13
z|
MAIN
Miss wiring error at
3Phase power source line
(Only 3Phase Model)
Check Power
Line-R,S,T,N
E425
14
z|
MAIN
Gas leakage error
(Stop state)
Check Gas leak E439
15
z|
MAIN
Heating operation is not available since the
outdoor air temperature is over 35°C.
Heating E440
16 Cooling E441
16
z|
MAIN
Gas leakage error
(Before operating)
Check Gas leak E443
17
||z
MAIN/INVERTER Outdoor unit BLDC Fan 1 or Fan 2 error
FAN1 error E458
19 E475
18
||
MAIN/INVERTER Comp. Starting error E461
19
z|
MAIN Primary Current Trip error E462
20
z|
MAIN Over current trip / PFC over current error Check OLP sensor E463
21
||
MAIN/INVERTER IPM(IGBT Module) Over Current(O.C) E464
22
|z
MAIN/INVERTER Comp.
Over load error E465
23
z|
MAIN/INVERTER DC-Link voltage under/over error
Check AC Power or
DC_Link voltage
E466
| Off  Blink z On
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