Troubleshooting 73 - Error Contents: Pcb Error 1; Troubleshooting 74 - Error Contents: Pcb Error 2 - Fujitsu Airstage V series Service Manual

3. Network Convertor (UTR-YRDA)
2. When connecting a single split type indoor unit to a network convertor
Trouble shooting 73
Error Contents :
PCB Error 1
Details :
Condition of occurrence : Synchronization of Network Device was not normally done.
Release condition : When the synchronization of the device is normally done.
Cause 1 : External noise
p 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 74
Error Contents :
PCB Error 2
Details :
Condition of occurrence : Error of inside information of EEPROM.
Initial setting of Network Converter PCB was not normally performed.
Release condition : When error disappeared and Network Convertor becomes available to control.
Cause 1 : External noise
p 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.
Symptom :
Error Code display [ 05 ]
All the control items do not operate.
NO
It is not a defect of PCB. Remove the surrounding noise source.
Symptom :
Error Code display [ 06 ]
Other controls are left as they are.
NO
It is not a defect of PCB. Remove the surrounding noise source.
06-74