Ac Zero Cross Signal Error - Samsung AR09HSFSHWKNCV Service Manual

10-2-26 AC zero cross signal error

Indoor display
3-LED DISPLAY
LED1 LED2
Outdoor display
LED ON LED BLINKING
1. Checklist :
1) Check the power condition at customer's house (Is there any power noise?)
2) Have been there power failure?
2. Troubleshooting procedure
Is the AC line zero cross signal error appeared again?
Exchange the Outdoor PBA
10-32
LED3
LED OFF
Restart after power off
YES
7-SEG DISPLAY
E472
AC zero cross signal error
NO
Terminate the service
DESCRIPTION
AC zero cross signal error
MODEL Error display
AR12(09)HSFSHWK X
AR18HSFSHWK O
AR24HSFSHWK
Samsung Electronics
O