Troubleshooting
Samsung Electronics
35
No.
LED Display
Displayed
PCB Assy
Meaning
Remarks
Error Code
Red
Green
Yellow
24
MAIN/INVERTER
Comp. wire missing error
Check Comp. wire
E467
25
MAIN/INVERTER
Current sensor error
Check Outdoor Inverter
PBA
E468
26
MAIN
DC-Ling voltage
Sensor error
Check Input
voltage
E469
27
MAIN
EEPROM read/write error
Check EEPROM
E470
28
MAIN
Outdoor EEPROM error
Check Outdoor EEPROM
date
E471
29
MAIN/INVERTER
IPM(IGBT Module) or PFCM Temperature sen-
sor Error
Check Outdoor Inverter
PBA
E474
30
MAIN/INVERTER
PFC Overload Error
Check Outdoor Inverter
PBA
E484
31
MAIN
Input current
sensor error
E485
32
MAIN/INVERTER
IPM is over heated.
Check Outdoor Inverter
PBA
E500
33
MAIN
GAS Leak error
Check Control Kit and out-
door unit model
E554
34
MAIN
Water inlet
temperature sensor error
Check Water
inlet sensor
E901
35
MAIN
Water outlet
temperature sensor error
Check Water
outlet sensor
E903
36
MAIN
Refriqerant gas inlet
temperature sensor error
Check Gas
inlet sensor
E906
37
MAIN
Mixing Valve Outlet
temperature sensor error
Check Mixing Valve
Outlet sensor
E916
Off
Blink
On
Troubleshooting for outdoor unit(con.)
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.