LG ARUN Series Service Manual page 83

**** After replacing the indoor unit PCB, make sure to be done to do Auto addressing and input the address of central control
***** If ODU Dry Contact function is set , different mode operation error may be occurred because the operation mode is fixed.
Error
Error Type
No.
Indoor unit EEPROM
09
error
I Error diagnosis and countermeasure flow chart
- Replace the indoor unit PCB, and then make sure to perform Auto addressing and input the address of central control
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Only for training and service purposes
Error Point
1. Error developed in transmission between the
micro- processor and the EEPROM on the sur-
face of the PCB.
2. ERROR due to the EEPROM damage
- 83 -
Troubleshooting Guide
Main Reasons
LGE Internal Use Only