When Communication Error Occurs Or Communication Is Impossible - Samsung MWR-WH00 Service Manual

Troubleshooting

4-2-2 When Communication Error Occurs or Communication is Impossible

Are the ASS'Y PBA(DB93-08787A) and
power cable connected properly?
Is the resistance of between
the both ends of ASS'Y PBA(DB93-08787A)
C302 higher than 200KΩ?
Is the resistance of between
the top part of ASS'Y PBA(DB93-08787A)
C302 and GND higher than 100KΩ?
Is the resistance of between
the bottom part of ASS'Y PBA(DB93-08787A)
C302 and GND higher than 100KΩ?
Check the indoor units' communication which is
connected to the wired remote controller
(Not the problem of the wired remote controller)
4-4
Start
Yes
Yes
Yes
Yes
End
No
Check the connection of ASS'Y PBA
and power cable.
No
Change ASS'Y PBA
No
Change ASS'Y PBA
No
Change ASS'Y PBA
Samsung Electronics