Communication Error - Fujitsu AUXB04GALH Service Manual

Network Convertor (UTY-VGGXZ1) Single Split system setting
Trouble shooting 86
Error Contents :

Communication Error

with Standard Remote Controller
Details :
Condition of occurrence : The communication between Standard Remote Controller and Network Convertor
Release condition : When the communication between Standard Remote Controller and Network Convertor
resumes normal operation.
Cause 1 : External noise
After pressing SW104 of Network Convertor PCB for 5 seconds or turning on power.
Does error code display reappear?
YES
Remove the surrounding noise source.
OK
Cause 2 :
Defective or open connection of cable wire between Network Convertor and Connected Remote Controller.
After the following are checked, the power supply is reset.
Check connection cable wire between Network Convertor and Connected Remote Controller.
Check connection between Control PCB and Terminal.
OK
Cause 3 : Incorrect setting of Network Convertor's DIP-SW107[2] (Wired RC Validity setting)
Check Network Convertor PCB DIP-SW107[2].
OK
Cause 4 : Incorrect selection of Remote Controller
Check connection Remote Controller. (Is it specified with the Installation Manual of Network Convertor?)
OK
Cause 5 :
Incorrect setting of Remote Controller's DIP-SW (Number of connected remote controllers)
Check DIP-SW of Remote Controller.
OK
Cause 6 : Defective Remote Controller or Network Convertor.
Replace Remote Controller or Network Convertor.
-
Symptom :
Error Code display [ 1 2 ] Control/Display from Standard Remote s
not available. Other controls are left as they are.
was not normally performed.
NO
It is not a defect of PCB. Remove the surrounding noise source.
04-94