Samsung RC***MHXGA, Installation Manual

Page: 37 / 44

ENGLISH
37
Trouble shooting Trouble shooting
No.
LED Display
Displayed
PCB Assy
Meaning Remarks Error Code
Red Green Yellow
-    MAIN/INVERTER
Normal operation
(MAIN : Indoor

Outdoor : Green ON)
(INVERTER : MAIN PCB

INVERTER PCB : Green ON)
-
1    MAIN
Unit quantity miss matching between indoor and
outdoor. Check indoor quantity setting in
outdoor.
E201
2
  
MAIN/INVERTER
Abnormal state, no communication between Indoor
and Outdoor Main PCB
Check electrical connection and setting E202
  
3    MAIN/INVERTER 1min. Time out of communcation error(Main

Inverter) Check electrical connection and setting E203
4
  
MAIN Outdoor temp sensor error Check Outdoor sensor Open/Short E221
5    MAIN Cond. temp sensor error Check Cond. sensor Open/Short E231
6    MAIN Discharge temp sensor error
Check Discharge sensor Open/
Short
E251
7
  
MAIN OLP Sensor Error Check OLP sensor Open/Short E320
8    MAIN Detection of Outdoor Freezing when Comp. Stop Check Outdoor Cond. E403
9    MAIN Protection of Outdoor Overload when Comp. Stop Check Comp. when it start E404
10
  
MAIN
Discharge temperature of a compressor in an
outdoor unit is overheated.
E416
11    MAIN
Heating operation is not available since the outdoor
air temperature is over 35°C.
Heating E440
Cooling operation is not available since the outdoor
air temperature is lower than -5°C.
Cooling E441
12
  
MAIN/INVERTER Outdoor unit BLDC Fan 1 or Fan 2 error
FAN1 error E458
FAN2 error E475
13    MAIN/INVERTER Comp. Starting error E461
14
  
MAIN Primary Current Trip error E462
15    MAIN Over current trip / PFC over current error Check OLP sensor E463
16    MAIN/INVERTER IPM(IGBT Module) Over Current(O.C) E464
17
  
MAIN/INVERTER Comp. Over load error E465
18    MAIN/INVERTER DC-Link voltage under/over error Check AC Power or DC_Link voltage E466
19    MAIN/INVERTER Comp. wire missing error Check Comp. wire E467
20
  
MAIN/INVERTER Current sensor error Check Outdoor Inverter PBA E468
21
  
MAIN Outdoor EEPROM error Check Outdoor EEPROM date E471
22    MAIN/INVERTER IPM(IGBT Module) or PFCM Temperature sensor Error Check Outdoor Inverter PBA E474
23
  
MAIN/INVERTER PFC Overload Error Check Outdoor Inverter PBA E484
24
  
MAIN/INVERTER IPM is over heated. Check Outdoor Inverter PBA E500
25    MAIN GAS Leak error Check indoor and outdoor unit model E554
26
  
MAIN Capacity miss match between indoor and outdoor Check indoor and outdoor unit model E556
 Off  Blink  On
The table below give indication about self diagnostic routine. Some of error code requires activities exclusively for Authorized
Service Center.
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.
Outdoor unit