Fujitsu AMUG24LMAS Service Manual page 68

Troubleshooting 14-2
EEPROM access error
Detective actuators:
Outdoor unit main PCB
Detective details:
When the check run if can not write data to
the EEPROM.
Forecast of cause:
1. External cause
(Noise, temporary open, voltage drop)
2. Main PCB failure
Check point 1-1 : Turn the power on again?
・
Error displayed again?
YES
Replace Main PCB
If Test 1 do not improve the symptom, replace Main PCB(Outdoor unit).
Indicate or Display:
Indoor unit
Operation lamp: - times Flash,
Timer lamp
Wired remote
Error code : [E : --]
Outdoor unit (AOUG36/48LMAS1)
Mode Error
2
: Light OFF
Check point 1-2 : External cause
NO
Check if temporary voltage drop was not generated.
Check if temporary open was not generated.
Check if ground is connected correctly or
there are no related cables near the power line.
03-20
: - times Flash
A B C D E
6 2
: Light ON n : n times blinking
F