Samsung CH070EAV1 Service Manual page 56

Operation method
 Step 27
Method)
I f the steps 1 to 26 are completed, remove

the battery and insert it again to return to
the original display of remote controller.
(Operation mode/SET TEMP.
/fan speed displays.)
4-16
Applicable button
rear side
Indicating state
Error
① If the On/Off, Timer and Fan
indicator is flickering, the wrong option
code is input. Put off the power of
indoor unit and turn it on again and
then input the option code again.
If the same error occurs, it is the
EEPROM is defective or not inserted.
Replace the PCB.
② If all of On/Off, Timer, Fan and Filter
Sign indicator are flickering along with
the "Tiriring" sound, there is option
code already input which are different
from the current ones.
Check the option code and press the
button again if correct. Option code will
be input.(Check the option code
correctly. At the time, if the same error
continues to occur, the option code is
out of input range.
Check the option code again and repeat
the step 1~26.
Samsung Electronics