Software Error; Refrigerant Circuit Address Setting Error - Fujitsu Airstage V-II Service Manual

Trouble shooting 82
Error Contents :

Software Error

Details :
Condition of occurrence : Micon program performed an abnormal control.
Error of inside information of EEPROM.
initial setting of Network Converor PCB was not normally performed.
Release condition : Micon has been reset, and the control of Network Convertor became normal.
When error disappeared and Network Convetor becomes available to control.
Cause 1 : External noise
Check continuation of error.
(1) If error is released automatically, it is not a defect of PCB. Remove the surrounding noise source around Network Convertor.
(2) If error is not released automatically, check followings.
OK
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 : Network Convertor is defective.
Replace Network Convertor.
Trouble shooting 83
Error Contents :
Refrigerant circuit address setting
error
Details :
Condition of occurrence : Indoor unit registration is 3 refrigerant circuits or more.
Release condition : Indoor unit registration is 2 refrigerant circuits or more.
Cause 1 : Check of number of indoor unit registration refrigerant circuits
Check indoor unit registration.
(1) Number of refrigerant sircuits of indoor unit registered at Replace Group Remote Controller is 3 refrigerant sircuits or more
even though connected to one converter.
YES
Make 2 refrigerant sircuits or less
and wait 2 minutes
Symptom :
Error Code display [ C A ]
All the control items do not operate.
Other Controls are left they are.
NO
It is not a defect of PCB. Remove the surrounding noise source.
Symptom :
Error Code display [ 2 6 ]
NO
Replace Network Convertor
Replace Group Remote Controller
04-82