Samsung AR18HSFNBWKNEU Service Manual page 96

10-2-16 DC_link voltage under/over error, H/W DC-link Over voltage protection error/PFC over load
Indoor display
3-LED DISPLAY
LED1 LED2
Outdoor display
LED ON LED BLINKING
1. Checklist :
1) Is the input voltage of outdoor terminal block is normal?
2) Is the input voltage is higher than 300Vac?
3) Is the reactor wire connected?
4) Is the DC_link capacitor(A") assembled in accordance the specification? (Outdoor PBA)
5) Is the DC_link resistor("B") value is normal? (Outdoor PBA)
6) Is the PFC resistor("C") value is normal? (Outdoor PBA)
2. Troubleshooting procedure
Is the connected of reactor wire?
Restart after power off.
Is the the input voltage is nomal?
Normal range(180Vac ~ 270Vac)
Restart after power off.
Start the operation (cooling mode or heating mode)
Is the DC_link voltage
("A") is normal in operation mode?
Normal range(280Vdc~320Vdc)
10-18
7-SEG DISPLAY
LED3
LED OFF
(PBA-Reactor)
YES
YES
YES
E466 DC-Link voltage under/over error
E483 Over Voltage Protection Error
4 E 4 8
DC-Link voltage under/over error
PFC over load
Over Voltage Protection Erro
M O D L E
DB92-02866A CE101,CE102,CE103
DB92-02867A CE053,CE054,CE055,CE056 R059,R060,R061,R062
M O D L E
DB92-02866A/2867A R105,R106,R107,R108
NO
Connect the reactor wire
NO
Check the input power in the powercord.
NO
Check the input power
DESCRIPTION
P C F v o r e o l d a
A " " " " B
R101,R102,R103,R104
C " " D " "
R105
Samsung Electronics