
Troubleshooting Guide
- 105 -
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
16) Troubleshooting CH67, CH105
67
105
Outdoor fan
lock
Communication error
between main PCB and
fan PCB
• Outdoor fan is not oper-
ating
• Communication error
between main PCB
and fan PCB
• Check the fan condition.
• Check the fan connector
• Short or fusing of communication line
• Poor outdoor unit PCB
• Power input when the DC link capacitor discharges
Display
code
Title Cause of error Check point & Normal condition
Check Point
• CH 67
1. Check the install condition for fan.
• CH 105
1. Is communication line between the main PCB and the
fan PCB normal?
2. Is the communication LED on?
Comentarios a estos manuales