Troubleshooting Guide
174 Outdoor Unit
If "n1" is displayed at the 7 segment in the main PCB, check Fan Motor "n1" or Fan PCB "n1"
If "n2" is displayed at the 7 segment in the main PCB, check Fan Motor "n2" or Fan PCB "n2"
Communication
error between the
Inverter PCB and
the fan PCB
Error
Code
Error Contents Meaning Main Causes
Error display
position
105
108
Communication error
between the Inverter PCB
and the fan PCB
(Fan › outdoor, outdoor ›
fan )
Concerned
Remote
Controller
Outdoor
Unit
1. Defective communication
Cable connection
2. Communication cable Open/Short
3. Defective outdoor PCB
4. Defective fan PCB
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