Fujitsu ASU18RMLQ Service Instruction page 31

2. ERROR CODE HISTORY DISPLAY
Up to 16 memorized error codes may be displayed for the indoor unit connected to the remote controller.
1. Stop the air conditioner operation.
2. Press the SET TEMPERATURE buttons
start the self-diagnosis.
3. Press the SET TEMPERATURE button to select the error history number.
Lower Raise
4. Press the SET TEMPERATURE buttons
or there is no key input for 60 seconds to stop the display.
,
DAY
DAY
,
02-05
simultaneously for 5 seconds or more to
Error code
SU MO TU WE TH FR SA
0 1 2 3 4
ı ı
F E d c b
simultaneously for 3 seconds or more
Error history number
5 6 7
A 9 8