Troubleshooting For Outdoor Unit - Samsung AE040JXEDEH Service Manual

Troubleshooting

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.
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
 
50
Displayed
PCB Assy
Yellow
Normal operation
(MAIN : IndoorOutdoor : Green ON)
MAIN/INVERTER

(INVERTER : MAIN PCBINVERTER PCB :
Green ON)
MAIN Hydro unit quantity is mismatched.


Abnormal state, no communication between
MAIN/INVERTER
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 Comp.
MAIN

Stop
Protection of Outdoor Overload when Comp.
MAIN

Stop
Discharge temperature of a compressor in an
MAIN

outdoor unit is overheated.
Outdoor EEV
MAIN

Open error
Miss wiring error at
MAIN 3Phase power source line

(Only 3Phase Model)
Gas leakage error
MAIN

(Stop state)
Heating operation is not available since the
outdoor air temperature is over 35°C.
MAIN

16
Gas leakage error
MAIN

(Before operating)
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

Meaning
Check Hydro unit 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
Check EEV
Check Power
Line-R,S,T,N
Check Gas leak
Heating
Cooling
Check Gas leak
FAN1 error
19
Check OLP sensor
Check AC Power or
DC_Link voltage
Remarks Error Code
-
E201
E202
E203
E221
E231
E251
E320
E403
E404
E416
E419
E425
E439
E440
E441
E443
E458
E475
E461
E462
E463
E464
E465
E466
 Off  Blink  On
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