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. See the lamp blinking patterns and error
codes in the table below.
Error indications
TIMER
OPERATION
FILTER
lamp
lamp (green)
lamp (red)
(orange)
(1)
(2)
(1)
(4)
(1)
(6)
(2)
(6)
(2)
(9)
(3)
(1)
(3)
(2)
(3)
(10)
(4)
(1)
(4)
(2)
(5)
(1)
(5)
(2)
(5)
(3)
(9)
(15)
(13)
(1)
Display mode
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
( ) : Number of fl ashing
Wired
Remote
Error contents
Controller
Error CODE
Remote controller communication
error
Network communication error
Peripheral unit communication
error
Indoor unit address setting error
Connection unit number error in
wired remote controller system
Indoor unit power supply abnormal
Indoor unit main PCB error
Indoor unit communication circuit
(wired remote controller) error
Indoor unit room temp. thermistor
error
Indoor unit heat ex. temp.
thermistor error
Indoor unit fan motor 1 error
Indoor unit coil (expansion valve)
error
Indoor unit water drain abnormal
Outdoor unit miscellaneous error
RB unit error
Wired remote controller display
UTY-RNKY / UTY-RNKG / UTY-RNKYT (3-wire type)
UTY-RNRY / UTY-RNRG (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-RLRY / UTY-RLRG (2-wire type)
Error icon
For more information, refer to the installation manual of the remote controller.
Error code
Touch the [Next Page] (or [previous page])
to switch to other indoor unit information.
Error code
En-16