Samsung AR18HSFNBWKNEU Service Manual page 95

10-2-15 DC_link voltage sensor error
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 reactor wire connected?
3) Is the PFC resistor("A") value is normal? (Outdoor PBA)
2. Troubleshooting procedure
Is the connected of reactor wire?
Start the operation (cooling mode or heating mode)
voltage("B") is normal in operation mode?
Normal range (0.2Vdc~4.8Vdc)
Is the reactor insulation damaged?
Samsung Electronics
LED3
LED OFF
(PBA-Reactor)
YES
Restart after power off.
Is the DC_link sensing
YES
YES
Exchange the Reactor
7-SEG DISPLAY
E488
AC Input Voltage Sensor Error
M O D L E
DB92-02866A/2867A
NO
Connect the reactor wire
NO
Exchange the Outdoor PBA
NO
Exchange the Outdoor PBA
DESCRIPTION
AC Input Voltage Sensor Error
A " "
R105,R106,R107,R108
B " "
R105
10-17