Troubleshooting - Toshiba RAV-SM307KRTP-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
Indication Timer Ready Flashing
GR GR 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
Judging Parts to be checked /
device error description
Incorrect remote controller setting --- The
header remote controller has not been set
Remote
(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
Indoor P.C. board --- No data is received from the
remote controller or network adapter.
System interconnection wires, indoor
P.C. board, outdoor P.C. board --- Serial
Indoor
communication error between indoor unit
and outdoor unit
Indoor address setting error --- The same
Indoor
address as the self-address was detected.
Remote controller address setting error -
-- Two remote controllers are set as header
in the double-remote controller control.
Remote
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
microcomputer MCU.
Indoor P.C. board --- Regular
communication is not possible between
Indoor
header and follower indoor units or between
twin header (main) and follower (sub) units.
Communication error between IPDU and
Outdoor
CDB.
Heat exchanger sensor (TCJ), indoor P.C.
Indoor board --- Open-circuit or short-circuit of the
heat exchanger sensor (TCJ) was detected.
Heat exchanger sensor (TC), indoor P.C.
Indoor board --- Open-circuit or short-circuit of the
heat exchanger sensor (TC) was detected.
Outdoor temp. sensor (TD), outdoor P.C.
Outdoor board --- Open-circuit or short-circuit of the
discharge temp. sensor was detected.
Outdoor temp. sensors (TE / TS), outdoor
P.C. board --- Open-circuit or short-circuit
Outdoor
of the heat exchanger temp. sensor was
detected.
TL sensor may be displaced, disconnected
Outdoor
or short-circuited.
Outdoor temp. sensor (TO), outdoor P.C.
Outdoor board --- Open-circuit or short-circuit of the
outdoor air temp. sensor was detected.
Air
conditioner
status
*
*
Auto-reset
Auto-reset
Auto-reset
*
Auto-reset
Auto-reset
Entire stop
Auto-reset
Auto-reset
Entire stop
Entire stop
Entire stop
Operation
continued
42-EN