Troubleshooting For Outdoor Unit - Samsung NS100HHXEH Service Manual

4-4-3 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.
LED Display
No.
Red Green
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Samsung Electronics
Displayed
PCB Assy
Yellow
Normal operation
(MAIN : Indoor Outdoor : Green ON)
MAIN/INVERTER
(INVERTER : MAIN PCB INVERTER PCB :
Green ON)
Unit quantity miss matching between
MAIN
indoor and outdoor.
Abnormal state, no communication
MAIN/INVERTER
between Indoor and Outdoor Main PCB
1min. Time out of communcation
MAIN/INVERTER
error(Main Inverter)
MAIN Outdoor temp sensor error
MAIN Cond. temp sensor error
MAIN Discharge temp sensor error
MAIN OLP Sensor Error
Detection of Outdoor Freezing when
MAIN
Comp. Stop
Protection of Outdoor Overload when
MAIN
Comp. Stop
Discharge temperature of a compressor
MAIN
in an outdoor unit is overheated.
Heating operation is not available since
the outdoor air temperature is over 30°C.
MAIN
Cooling operation is not available since
the outdoor air temperature is lower than
-5°C.
MAIN/INVERTER Outdoor unit BLDC Fan 1 or Fan 2 error
MAIN/INVERTER Comp. Starting error
MAIN Primary Current Trip error
MAIN Over current trip / PFC over current error
MAIN/INVERTER IPM(IGBT Module) Over Current(O.C)
MAIN/INVERTER Comp. Over load error
MAIN/INVERTER DC-Link voltage under/over error
MAIN/INVERTER Comp. wire missing error
MAIN/INVERTER Current sensor error
MAIN Outdoor EEPROM error
IPM(IGBT Module) or PFCM Temperature
MAIN/INVERTER
sensor Error
MAIN/INVERTER PFC Overload Error
MAIN/INVERTER IPM is over heated.
MAIN GAS Leak error
Capacity miss match between indoor and
MAIN
outdoor
Option code miss matching among the
MAIN
indoors (only for DPM)
Meaning
Check indoor quantity
setting in outdoor (Refer
to page 17.)
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
Check indoor option code
Remarks Error Code
-
E201
E202
E203
E221
E231
E251
E320
E403
E404
E416
E440
E441
E458
E475
E461
E462
E463
E464
E465
E466
E467
E468
E471
E474
E484
E500
E554
E556
E557
Off Blink On
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