LG AH-W096A0 Service Manual page 74

Trouble Shooting
Display
Title
code
Transmission Error
Between (PFC Micom ¡
39
INV Micom)
Check Flow Chart
Is PFC Micom & INV Micom
S/W Program normal?
Yes
Is Inverter PCB assembly normal?
Yes
Recheck power and installation condition
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Cause of error
Communication Error
Between PFC Micom
and INV Micom.
No
Upgrade Micom Program
No
Replace inverter PCB assembly
- 74 -
Check point & Normal condition
1. Micom defect/Circuit defect
2. Different Micom S/W Version
3. ODU inverter PCB assembly damage
LGE Internal Use Only