Troubleshooting - Toshiba RAV-GM901CTP-E Installation Manual

11

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
47-EN
■
Confirmation of error log
When an error occurred on the air conditioner, the
error log can be confi rmed with the following proce-
dure. (The error log is stored in memory up to 4 er-
rors.) The log can be confi rmed 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.
■
Check codes and parts to be checked
Wired Wireless remote
remote controller Sensor
controller block display of
display receiving unit
Main defective parts
Operation
Timer
Indication Flashing
Ready GR
GR OR
No header remote controller
E01
Remote controller
communication error
Remote controller transmission
E02
error
Indoor unit-remote controller
E03
regular communication error
Indoor unit-outdoor unit serial
communication error
E04
IPDU-CDB communication error
E08 Duplicated indoor addresses
Duplicated header remote
E09
controllers
Indoor unit-optional parts
E11
communication error
Header unit follower unit regular
E18
communication error
E31 IPDU communication error
Indoor unit heat exchanger
F01 ALT
sensor (TCJ) error
Indoor unit heat exchanger
F02 ALT
sensor (TC) error
Outdoor unit discharge temp.
F04 ALT
sensor (TD) error
Outdoor unit temp. sensor (TE/
F06 ALT
TS) error
F07 ALT TL sensor error
Outdoor unit outside air temp.
F08 ALT
sensor error
Indoor unit room temp. sensor
F10 ALT
(TA) error
F12 ALT TS (1) sensor error
F13 ALT Heat sink sensor error
F15 ALT Temp. sensor connection error
Indoor unit, other P.C. board
F29 SIM
error
– 24 –
Judging
Parts to be checked / error description
device
Incorrect remote controller setting --- The header
remote controller has not been set (including two
Remote
remote controllers).
controller
No signal can be received from the indoor unit.
System interconnection wires, indoor P.C. board,
Remote
remote controller --- No signal can be sent to the
controller
indoor unit.
Remote controller, network adapter, indoor P.C.
Indoor board --- No data is received from the remote
controller or network adapter.
System interconnection wires, indoor P.C. board,
Indoor outdoor P.C. board --- Serial communication error
between indoor unit and outdoor unit
Indoor address setting error --- The same address
Indoor
as the self-address was detected.
Remote controller address setting error
--- Two remote controllers are set as header in the
Remote
double- remote controller control.
controller
(* The header indoor unit stops raising alarm and
follower indoor units continue to operate.)
Communication error between indoor P.C. board
Indoor
and optional parts
Indoor P.C. board --- Regular communication is
not possible between header and follower indoor
Indoor
units or between twin header (main) and follower
(sub) units.
Outdoor Communication error between IPDU and 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. board
Indoor --- Open-circuit or short-circuit of the heat
exchanger sensor (TC) was detected.
Outdoor temp. sensor (TD), outdoor P.C. board
Outdoor --- Open-circuit or short-circuit of the discharge
temp. sensor was detected.
Outdoor temp. sensors (TE/TS), outdoor P.C.
Outdoor board --- Open-circuit or short-circuit of the heat
exchanger temp. sensor was detected.
TL sensor may be displaced, disconnected or
Outdoor
short- circuited.
Outdoor temp. sensor (TO), outdoor P.C. board
Outdoor --- Open-circuit or short-circuit of the outdoor air
temp. sensor was detected.
Room temp. sensor (TA), indoor P.C. board
Indoor --- Open- circuit or short-circuit of the room temp.
sensor (TA) was detected.
TS (1) sensor may be displaced, disconnected or
Outdoor
short-circuited.
Abnormal temperature was detected by the temp.
Outdoor
sensor of the IGBT heat sink.
Temp. sensor (TE/TS) may be connected
Outdoor
incorrectly.
Indoor Indoor P.C. board --- EEPROM error"
Air
conditioner
status
*
*
Auto-
reset
Auto-
reset
Auto-
reset
*
Entire
stop
Auto-
reset
Entire
stop
Auto-
reset
Auto-
reset
Entire
stop
Entire
stop
Entire
stop
Operation
continued
Auto-
reset
Entire
stop
Entire
stop
Entire
stop
Auto-
reset
48-EN