Troubleshooting - Toshiba RAV-SM566KRT-E Installation Manual

14

Troubleshooting

Confirmation 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.
Error code Indoor UNIT No. in
which an error occurred
41-EN
Confirmation 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.
2
3
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 confirmation, push button to return
to the usual display.
– 21 –
Error codes and parts to be checked
Wired
Wireless remote controller
remote
Sensor block display of
controller
receiving unit
display
Main defective parts
Operation Timer
Flashin
Indication Ready
g
GRGR OR
No header remote
controller
E01
Remote controller
communication error
Remote controller
E02
transmission error
Indoor unit-remote
E03 controller regular
communication error
Indoor unit-outdoor unit
serial communication
error
E04
IPDU-CDB
communication error
Duplicated indoor
E08
addresses
Duplicated header
E09
remote controllers
CPU-CPU
E10
communication error
Header unit follower unit
E18 regular communication
error
IPDU communication
E31
error
Indoor unit heat
F01 ALT exchanger sensor (TCJ)
error
Indoor unit heat
F02 ALT exchanger sensor (TC)
error
Outdoor unit discharge
F04 ALT
temp. sensor (TD) error
Outdoor unit temp.
F06 ALT
sensor (TE / TS) error
F07 ALT TL sensor error
Outdoor unit outside air
F08 ALT
temp. sensor error
Parts to be checked / error
Judging Air conditioner
device description status
Incorrect remote controller setting --- The
header remote controller has not been
Remote
set (including two remote controllers).
*
controller
No signal can be received from the
indoor unit.
System interconnection wires, indoor
Remote P.C. board, remote controller.
*
controller --- No signal can be sent to the indoor
unit.
Remote controller, network adapter,
indoor P.C. board --- No data is received
Indoor Auto-reset
from the remote controller or network
adapter.
System interconnection wires, indoor
P.C. board, outdoor P.C. board --- Serial
Indoor Auto-reset
communication error between indoor unit
and outdoor unit
Indoor address setting error --- The
Indoor same address as the self-address was Auto-reset
detected.
Remote controller address setting error -
-- Two remote controllers are set as
header in the double-remote controller
Remote
control.
*
controller
(* The header indoor unit stops raising
alarm and follower indoor units continue
to operate.)
Indoor P.C. board --- Communication
Indoor error between main MCU and motor Auto-reset
microcomputer MCU.
Indoor P.C. board --- Regular
communication is not possible between
Indoor header and follower indoor units or Auto-reset
between twin header (main) and follower
(sub) units.
Communication error between IPDU and
Outdoor Entire stop
CDB.
Heat exchanger sensor (TCJ), indoor
P.C. board --- Open-circuit or short-
Indoor Auto-reset
circuit of the heat exchanger sensor
(TCJ) was detected.
Heat exchanger sensor (TC), indoor P.C.
board --- Open-circuit or short-circuit of
Indoor Auto-reset
the heat exchanger sensor (TC) was
detected.
Outdoor temp. sensor (TD), outdoor P.C.
board --- Open-circuit or short-circuit of
Outdoor Entire stop
the discharge temp. sensor was
detected.
Outdoor temp. sensors (TE / TS),
outdoor P.C. board --- Open-circuit or
Outdoor Entire stop
short-circuit of the heat exchanger temp.
sensor was detected.
TL sensor may be displaced,
Outdoor Entire stop
disconnected or short-circuited.
Outdoor temp. sensor (TO), outdoor P.C.
board --- Open-circuit or short-circuit of Operation
Outdoor
the outdoor air temp. sensor was continued
detected.
42-EN