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(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).
Possible causes of troubles
Remote controller is detecting
unusual signal from indoor unit.
(No serial communications signal)
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.
Improper wiring connections of ceiling panel.
Protective device in indoor unit
is activated.
Protective device in outdoor unit
is activated.
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.
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.
28
E01
Operation
lamp flashes
E02
: Operation
E03
lamp
: Timer lamp
E08
:H eat stand-
E09
by lamp
E11
E14
E04
Heat stand-by
lamp flashes
E05
E06
:Operation
lamp
: Timer lamp
E07
: H eat stand-
E15
by lamp
E16
E18
L02
L03
L07
: Operation
lamp
L09
: Timer lamp
L11
: H eat stand-
by lamp
: Operation
P09
lamp
: Timer lamp
P01
: H eat stand-
P10
by lamp
P02
: Operation
P03
lamp
P04
: Timer lamp
P05
: H eat stand-
by lamp
P31
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