Indoor Unit - Remote Controller Communication Error - Fujitsu Airstage V-II Service Manual

6. Wired(UTY-RNK ) and Simple Remote Controller (UTY-RSK ,RHK )
Trouble shooting 97
Error Contents :
Indoor Unit Remote Controller
Communication Error
Details :
Condition of occurrence : When signal from indoor unit does not enter
Release condition : When signal from indoor unit entered
Cause 1 : Check connection
Check cable
Check indoor unit power supply
OK
Cause 2 : Check indoor unit remote controller address.
Check if the indoor unit remote controller addresses are sequentially
set from 0.
OK
Cause 3 : Noise
Remove the surrounding noise.
OK
Cause 4 : Remote controller trouble
Replace remote controller.
OK
Cause 5 : Indoor unit PCB trouble
Change Controller PCB and set up the original address.
(Refer to 06-03 page Main PCB removal.)
Symptom :
Error Code display [ 1 2 ]
t enter
04-92