Samsung AVMKH020EA0 Service Manual page 204

8-2-24. Setting error of option switch in indoor unit
Outdoor unit display
Indoor unit display
Judgment method
Causes
✳The error is occurred when the option switch for using the remote controller, No.1 switch on SW03, is set and the wired remote controller address
is different from the RMC address of indoor unit.
Check setting of the SW03.
Is the address of the wired
remote controller and the RMC address of the
indoor unit is the same?
Reset the address of the
wired remote controller
to "1".
Reset the power of indoor unit.
(Operation) (Timer) (Fan)
- Switch setting error for using the wired remote controller
- Option switch setting error of indoor unit
No
Check the switches of the wired
remote controller and the
indoor unit, then replace the
remote controller and/or the
indoor unit PCB.
- 203 -
(Filter) (Removing frost)
Yes
Reset the address of the RMC
address of the indoor unit to "1".
Troubleshooting