Error Codes - Fujitsu AS A004HCAH Series Installation Manual

11. ERROR CODES

If you use a wired type remote controller, error codes will appear on the remote controller
display. If you use a wireless remote controller, the lamp on the photodetector unit will
output error codes by way of blinking patterns. Refer to the lamp blinking patterns and
error codes in the table below.
NOTE:
Depending on the power-on timing of the connected safety measures unit, an error may
be displayed temporarily. If the connection between devices is successfully completed,
the error message will disappear.
Error indications
OPERATION TIMER lamp FILTER lamp
lamp (green) (orange) (red)
(1) (2)
(1) (4)
(1) (6)
(1) (8)
(2) (3)
(2) (6)
(2) (9)
(3) (1)
(3) (2)
(3) (10)
(4) (1)
(4) (2)
(4) (4)
(4) (5)
(5) (1)
(5) (2)
(5) (3)
(9) (15)
(10) (8)
(13) (1)
(13) (7)
Display mode : 0.5 s ON / 0.5 s OFF
: 0.1 s ON / 0.1 s OFF
( ) : Number of blinking
Wired remote
controller Error contents
error code
Remote controller communi-
cation error
Network communication
error
Peripheral unit communica-
tion error
External communication
error
Combination error
Indoor unit address setting
error
Connection unit number er-
ror in wired remote controller
system
Indoor unit power supply
abnormal
Indoor unit main PCB error
Indoor unit communication
circuit (wired remote control-
ler) error
Indoor unit room temp.
thermistor error
Indoor unit heat ex. temp.
thermistor error
Occupancy sensor error
Gas sensor error
Indoor unit fan motor 1 error
Indoor unit coil (expansion
valve) error
Indoor unit water drain
abnormal
Outdoor unit miscellaneous
error
Poor refrigerant circulation
RB unit error
External device error
Wired remote controller display
UTY-RNR*Z* (2-wire type)
Error icon
Touch the [Status]. Touch the [Error Information].
2-digit numbers are corresponding to
the error code in the preceding table.
For more information, refer to the installation manual of the remote controller.
UTY-RLR* (2-wire type)
Error icon
For more information, refer to the installation manual of the remote controller.
Touch the [Next Page] (or [previous page])
to switch to other indoor unit information.
Error code
En-14