En-12
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
Wired Remote
Controller Error
code
Error contents
OPERATION
lamp (green)
TIMER lamp
(orange)
FILTER lamp
(red)
(1)
(2)
Remote controller com-
munication error
(1)
(4)
Network communica
-
tion error
(1)
(6)
Peripheral unit commu-
nication error
(2)
(6)
Indoor unit address set-
ting error
(2)
(9)
Connection unit number
error in wired remote
controller system
(3)
(1)
Indoor unit power supply
abnormal
(5)
(1)
Indoor unit main PCB
error
(3)
(10)
Indoor unit communica-
tion circuit (wired remote
controller) error
(4)
(1)
Indoor unit room temp.
thermistor error
(4)
(2)
Indoor unit heat ex.
temp. thermistor error
(4)
(4)
Human sensor error
(5)
(1)
Indoor unit fan motor
1 error
(5)
(2)
Indoor unit coil (expan-
sion valve) error
(5)
(3)
Indoor unit water drain
abnormal
(9)
(15)
Outdoor unit miscella-
neous error
(10)
(8)
Poor refrigerant circula-
tion
(13)
(1)
RB unit error
Display mode
: 0.5 s ON / 0.5 s OFF
: 0.1 s ON / 0.1 s OFF
( ) : Number of flashing
Wired Remote Controller Display
UTY-RLR* (2-wire type)
Error icon
Error icon
Error code
Touch the [Status].
Touch the [Error Information].
For more information, refer to the installation manual of the remote controller.
For more information, refer to the installation manual of the remote controller.
2-digit numbers are corresponding to
the error code in the preceding table.
Touch the [Next Page] (or [previous page])
to switch to other indoor unit information.
UTY-RNR*Z2 (2-wire type)
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