Troubleshooting For Outdoor Unit - Samsung AC026JNNCEH Service Manual

4-2-4 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. Error Code
E201
1
2 E202
E203
3
4 E221
E231
5
E251
6
7 E320
E403
8
9 E404
E416
10
E440
11
E441
E458
12
E475
E461
13
14 E462
E463
15
16 E464
E465
17
E466
18
19 E467
E468
20
21 E471
E474
22
E484
23
E500
24
E554
25
26 E556
4-12
Meaning
Unit quantity miss matching between indoor and outdoor.
Abnormal state, no communication between Indoor and Outdoor
Main PCB
1min. Time out of communcation error(MainInverter)
Outdoor temp sensor error
Cond. temp sensor error
Discharge temp sensor error
OLP Sensor Error
Detection of Outdoor Freezing when Comp. Stop
Protection of Outdoor Overload when Comp. Stop
Discharge temperature of a compressor in an
outdoor unit is overheated.
Heating operation is not available since the outdoor air tempera-
ture is over 30°C.
Cooling operation is not available since the outdoor air tempera-
ture is lower than -5°C.
Outdoor unit BLDC Fan 1 or Fan 2 error
Comp. Starting error
Primary Current Trip error
Over current trip / PFC over current error
IPM(IGBT Module) Over Current(O.C)
Comp. Over load error
DC-Link voltage under/over error
Comp. wire missing error
Current sensor error
Outdoor EEPROM error
IPM(IGBT Module) or PFCM Temperature sensor Error
PFC Overload Error
IPM is over heated.
GAS Leak error
Capacity miss match between indoor and outdoor
Remarks
Check indoor quantity setting in outdoor
Check electrical connection and setting
Check electrical connection and setting
Check Outdoor sensor Open/Short
Check Cond. sensor Open/Short
Check Discharge sensor Open/Short
Check OLP sensor Open/Short
Check Outdoor Cond.
Check Comp. when it start
Heating
Cooling
FAN1 error
FAN2 error
Check OLP sensor
Check AC Power or DC_Link voltage
Check Comp. wire
Check Outdoor Inverter PBA
Check Outdoor EEPROM date
Check Outdoor Inverter PBA
Check Outdoor Inverter PBA
Check Outdoor Inverter PBA
Check indoor and outdoor unit model
Check indoor and outdoor unit model
Samsung Electronics