LG ACHH Series Manual page 89

Error No. Error Type
Fan PCB EEPROM
87
(871)
Error
n Error Diagnosis and Countermeasure Flow Chart
Is EEPROM insertion normal?
Yes
Is Fan PCB assembly normal?
Yes
Recheck power and
installation condition
Check IC02L
Inverter EEPROM insertion
direction
❈ Note : Replace after power off
Error Point
Error occurs when checking the
EEPROM checksum as initializing
after power is supplied
1. Check EEPROM insertion direction/connection condition
No
2. Check EEPROM checksum
' Replace EEPROM if abnormality found
No
Replace fan PCB assembly
Same direction both socket
hole and EEPROM hole
- 89 -
Main Reasons
1.EEPROM bad contact/wrong insertion
2.EEPROM Version is different
3.ODU fan PCB assembly damage
Error code check