41-EN
42-EN
– 21 –
■
Error codes and parts to be checked
Wired
remote
controller
display
Wireless remote controller
Sensor block display of
receiving unit
Main defective parts
Judging
device
Parts to be checked /
error description
Air
conditioner
status
Indication
Operation
Timer Ready
GR GR OR
Flashing
E01
No header remote
controller
Remote
controller
Incorrect remote controller setting --- The
header remote controller has not been set
(including two remote controllers).
*
Remote controller
communication error
No signal can be received from the indoor
unit.
E02
Remote controller
transmission error
Remote
controller
System interconnection wires, indoor
P.C. board, remote controller.
--- No signal can be sent to the indoor unit.
*
E03
Indoor unit-remote
controller regular
communication error
Indoor
Remote controller, network adapter, indoor
P.C. board --- No data is received from the
remote controller or network adapter.
Auto-reset
E04
Indoor unit-outdoor unit
serial communication
error
Indoor
System interconnection wires, indoor
P.C. board, outdoor P.C. board --- Serial
communication error between indoor unit
and outdoor unit
Auto-reset
IPDU-CDB
communication error
E08
Duplicated indoor
addresses
Indoor
Indoor address setting error --- The same
address as the self-address was detected.
Auto-reset
E09
Duplicated header
remote controllers
Remote
controller
Remote controller address setting error -
-- Two remote controllers are set as header
in the double-remote controller control.
*
(* The header indoor unit stops raising
alarm and follower indoor units continue to
operate.)
E10
CPU-CPU
communication error
Indoor
Indoor P.C. board --- Communication
error between main MCU and motor
microcomputer MCU.
Auto-reset
E18
Header unit follower unit
regular communication
error
Indoor
Indoor P.C. board --- Regular
communication is not possible between
header and follower indoor units or between
twin header (main) and follower (sub) units.
Auto-reset
E31
IPDU communication
error
Outdoor
Communication error between IPDU and
CDB.
Entire stop
F01
ALT
Indoor unit heat
exchanger sensor (TCJ)
error
Indoor
Heat exchanger sensor (TCJ), indoor P.C.
board --- Open-circuit or short-circuit of the
heat exchanger sensor (TCJ) was detected.
Auto-reset
F02
ALT
Indoor unit heat
exchanger sensor (TC)
error
Indoor
Heat exchanger sensor (TC), indoor P.C.
board --- Open-circuit or short-circuit of the
heat exchanger sensor (TC) was detected.
Auto-reset
F04
ALT
Outdoor unit discharge
temp. sensor (TD) error
Outdoor
Outdoor temp. sensor (TD), outdoor P.C.
board --- Open-circuit or short-circuit of the
discharge temp. sensor was detected.
Entire stop
F06
ALT
Outdoor unit temp.
sensor (TE / TS) error
Outdoor
Outdoor temp. sensors (TE / TS), outdoor
P.C. board --- Open-circuit or short-circuit
of the heat exchanger temp. sensor was
detected.
Entire stop
F07
ALT
TL sensor error
Outdoor
TL sensor may be displaced, disconnected
or short-circuited.
Entire stop
F08
ALT
Outdoor unit outside air
temp. sensor error
Outdoor
Outdoor temp. sensor (TO), outdoor P.C.
board --- Open-circuit or short-circuit of the
outdoor air temp. sensor was detected.
Operation
continued
■
Con
fi
rmation and check
When an error occurred in the air conditioner, an error
code and indoor UNIT No. appear on the display part
of the remote controller.
The error code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following “Confirmation of error log”
for confirmation.
Indoor UNIT No. in
which an error occurred
Error code
■
Con
fi
rmation of error log
When an error occurred on the air conditioner,
the error log can be confirmed with the following
procedure.
(The error log is stored in memory up to 4 errors.)
The log can be confirmed from both operating status
and stop status.
3
2
1
1
When and buttons are pushed
simultaneously for 4 seconds or more, the
following display appears.
If is displayed, the mode enters in the error
log mode.
•
[
01
: Order of error log] is displayed in CODE
No..
•
[Error code] is displayed in CHECK.
•
[Indoor unit address in which an error occurred]
is displayed in Unit No..
2
Every pushing of
button used to
set temperature, the error log stored in
memory is displayed in order.
The numbers in CODE No. indicate CODE No.
[
01
] (latest)
→
[
04
] (oldest).
REQUIREMENT
Do not push button because all the error log of the
indoor unit will be deleted.
3
After
con
fi
rmation, push button to return
to the usual display.
14
Troubleshooting
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1111056499_(01)_EN.indb 21
10/13/14 9:13 AM
10/13/14 9:13 AM
