Fujitsu ASU18RLF Service Instructions Manual page 41

1. SELF - DIAGNOSIS
When " Er " in Temperature Display is displayed, inspection of the air conditioning system is necessary.
Please consult authorized service personnel.
Unit number (usually 0)
SU MOTU WETH FR SA
ex. Self-diagnosis check
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
or more to start the self-diagnosis.
3. Press the SET TEMPERATURE button to select the error history number.
Lower Raise
0 1 2
F E d
4. Press the SET TEMPERATURE buttons
or there is no key input for 60 seconds to stop the display.
Error code
,
3 4 5 6 7
c b A 9 8
,
02-02
simultaneously for 3 seconds
Error code
Error history number
SU MO TU WE TH FR SA
simultaneously for 3 seconds or more