1
1-295
Table of Self-Diagnostic Functions and Corrections (Type U1, T2, F1, N1 and Y2)
Wired
remote
controller
display
Indoor
unit
receiver
lamp
Cause
Correction
1:1 connection (single type)
Group connection
Simultaneous-operation
multi system
(flexible combination)
Control by
main-sub
remote
controllers
Nothing is
displayed
Nothing is
displayed
Remote controller is not
connected correctly.
Indoor unit power is not
ON.
Remote controller is not
connected with indoor
unit correctly
Indoor unit power is not
ON.
Same at left Connect the remote
controller correctly.
Turn ON the indoor unit
power.
E01
displayed
Operating
lamp is
blinking.
Automatic address setting
has not been completed.
Inter-unit control wiring is
cut or is not connected
correctly.
Remote controller is not
connected correctly (remote
controller receiving failure).
Automatic address
setting has not been
completed.
Inter-unit control wiring
is cut or is not
connected correctly.
Remote controller is not
connected with indoor
unit correctly.
Same at left Check the remote
controller and inter-unit
control wiring. Perform
automatic address setting.
E02
displayed
Remote controller is not
connected correctly (failure
in transmission from remote
controller to indoor unit).
Remote controller is not
connected with indoor
unit correctly.
Same at left Connect the remote
controller correctly.
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2 remote
controllers
are set as
the main
remote
controller.
Refer to section “Main-sub
remote Control”, and make
the correct settings.
Remote control
communication wiring is
cut or is not connected
correctly.
Same at left Check the remote control
communication wiring.
Perform automatic address
setting again.
E04
displayed
E14
displayed
E09
displayed
Standby
lamp is
blinking.
Indoor-outdoor inter-unit
wiring is not connected
correctly.
Same at left Connect the wiring
correctly.
E06
displayed
Indoor-outdoor inter-unit
wiring is cut or is not
connected correctly.
Same at left Refer to section “System
Control”, and make
the correct settings.
E15
displayed
Indoor unit capacity is too
low.
Same at left Check that the total
capacities of the indoor and
outdoor units are
appropriate.
E16
displayed
Indoor unit capacity is too
high.
E20
displayed
No serial signal is being
received at all from the
indoor units.
Check that the indoor unit
power is ON, and that the
inter-unit control wiring is
connected correctly.
P05
displayed
Operation
lamp and
Standby
lamp are
blinking
alternately.
Reversed phase in the
outdoor unit single-phase
or open phase in the
outdoor unit 3-phase power.
Insufficient gas
Reversed phase in the
outdoor unit single
phase or open phase
in the 3-phase power at
one of the outdoor units
in the group.
Reversed phase in the
outdoor unit single-
phase or open phase
in the outdoor unit
3-phase power.
CT sensor is
disconnected or there
is a problem with the
circuit.
Reverse 2 phases of the
outdoor unit 3-phase power
and connect them correctly.
Check that the CT sensor
is not disconnected, and
make sure it is inserted.
Fill up the gas
appropriately.
L02
displayed
L13
displayed
Both the
Operation
lamp and
Standby
lamp are
blinking
together.
Indoor-outdoor unit type
mismatch.
Check that the indoor and
outdoor unit types are
correct.
displayed
L07
Remote control
communication wiring is
connected to the indoor
unit, however it is set
for individual operation.
Same at left
Same at left
Same at left
Same at left
Same at left
Same at left
Same at left
Same at left
Same at left
Same at left
Perform automatic address
setting.
(See section “System
Control”.)
P09
displayed
Timer lamp
and
Standby
lamp are
blinking
alternately.
The indoor unit ceiling
panel connector is not
connected correctly.
Ceiling panel connector
at one of the indoor
units in the group is not
connected correctly.
Indoor unit ceiling panel
connector is not
connected correctly.
Same at left Connect the indoor unit
ceiling panel connector
correctly.
P12
displayed
Indoor unit DC fan trouble.
DC fan trouble at one
of the indoor units in
the group.
Indoor unit fan trouble.
Same at left Check whether the fan
holder is loose.
Check the wiring between
the DC fan and the PCB.
P15
displayed
Operation
lamp and
Standby
lamp are
blinking
alternately.
No gas
Same at left
Same at left
Same at left
Same at left
————
————
Check the refrigerant cycle
(for gas leaks).
SM830231-02̲Single̲欧州.indb 295
SM830231-02̲Single̲欧州.indb 295
2014/09/19 13:21:48
2014/09/19 13:21:48