(3) Meanings of alarm messages
If an error occurred in the air conditioner, the error condition is presented by indicating the error code in the
wired remote controller display or by the combination of lamp statuses for operation, timer and heat stand-by
(OFF status and flashing status).
Remote controller is detecting
unusual signal from indoor unit.
Possible causes of troubles
Improper setting of indoor unit or
remote controller.
Improper setting of indoor unit or
remote controller.
Indoor unit is detecting unusual
signal from outdoor unit.
Outdoor unit is detecting
unusual signal from indoor unit.
Auto. address setting is not
correct.
Indoor unit is detecting unusual
signal from another indoor unit.
Improper setting of indoor unit or
remote controller.
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: Operation
lamp
: Timer lamp
: H eat stand-
by lamp
(No serial communications signal)
Heat stand-by
lamp flashes
:Operation
lamp
: Timer lamp
: Heat stand-
by lamp
Operation
lamp flashes
: Operation
lamp
: Timer lamp
:Heat stand-
by lamp
Error receiving of serial communications signal.
Error transmitting of serial communications signal.
Indoor unit address setting is duplicated.
Remote controller address (RCU.ADR) is duplicated.
Error receiving of serial communications signal.
When using flexible combination control, main indoor unit address
setting is duplicated. (judged by outdoor unit.)
Error receiving of serial communications signal.
Error transmitting of serial communications signal
Error receiving of serial communications signal.
(Confirmation error of unit numbers included)
Error transmitting of serial communications signal.
No. of judged indoor units or total capacity of indoor units is small.
No. of judged indoor units or total capacity of indoor units is large.
Error receiving of serial communications signal.
Model setting of indoor unit is not matching the outdoor unit.
(judged by indoor unit.)
Improper wiring between indoor units.
Capacity code of indoor unit is not set.
Improper wiring of group control wiring.
E01
E02
E03
E08
E09
E11
E14
E04
E05
E06
E07
E15
E16
E18
L02
L03
L07
L09
L11
P09
P01
P10
P02
P03
P04
P05
P31
Thermal protector in indoor fan motor is activated.
Float switch is activated.
¥ Thermal protector in outdoor fan motor is activated.
¥ PC or AC Compressor thermal protector is activated.
¥ Power supply voltage is unusual. (The voltage is more than
260 V or less than 160 V between L and N phase.)
Discharge gas temperature of PC comp. is unusual.
High pressure switch is activated.
Negative phase or voltage drops.
Other indooor unit is warning.
Improper wiring connections of ceiling panel.
Protective device in indoor unit
is activated.
Protective device in outdoor unit
is activated.
: Operation
lamp
: Timer lamp
: H eat stand-
by lamp
: Operation
lamp
: Timer lamp
: H eat stand-
by lamp
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