Fujitsu ARHC72LHTA Service Manual page 19

OUTDOOR UNIT LED
POWER/MODE lamp (LED101)
It lights up when power on.
SELECT button (SW108)
ERROR DISPLAY MODE
(1) If an error has occurred, ERROR LED (LED102) will
flash rapidly.
Then 7 Segment LED will alternately display "Err" and
number of errors.
Error display
LED105 LED104
(2)
Error contents will display if ENTER button (SW109) is pressed in (1).
For error contents, refer to the table.
LED105 LED104
(3)
If SELECT button (SW108) is pressed in (2), contents of all the errors will display.
Error 1.
LED105 LED104
(4)
If ENTER button (SW109) is pressed, it will return to state of (1).
If no action is taken, it will return to the state of (1) after 60 seconds.
2010.03.29
POWER
MODE
LED101
(GREEN)
LED105
MODE
SELECT ENTER
/EXIT
SW107 SW108 SW109 SW102
Display number of errors
LED105
Alternate display
Ex.) "E.0C" is displayed.
Discharge thermistor error.
Error 2.
LED105 LED104
ERROR lamp (LED102)
ERROR
It will flash rapidly in the cace of an error.
LED102
(RED)
7 Segment LED lamp (LED105 and LED104)
LED104
Status of the unit will display.
PUMP
DOWN
SW101
CODE
E. 06.
E. 0A.
E. 0C.
E. 0E.
E. 0F.
E. 13.
E. 15.
E. 16.
LED104
E. 17.
E. 1A.
E. 1b.
E. 24.
E. 2b.
E. 2E.
E. 2F.
E. 98.
E. 99
Error 3.
LED105 LED104
18
ENTER button (SW109)
DESCRIPTION
Outdoor heat exchanger thermistor (outlet)
error
Outdoor thermistor error
Outdoor discharge pipe thermistor error
Heat sink thermistor (inverter) error
Discharge temperature error
Indoor signal error
Compressor thermistor error
Pressure switch error, Pressure sensor error
IPM protection
Compressor location error
Outdoor fan error
Excessive high pressure protection
Compressor temperature error
Inverter error
Low pressure error
Pump down error
Indoor unit error condition