Troubleshooting - Toshiba RAV-HM401CTP-E Installation Manual

11

Troubleshooting

■
Confirmation and check
If a problem occurs with the air
conditioner, the OFF timer indicator
alternately shows the check code and
the indoor Unit No. in which the problem
occurred.
Check code
■
Troubleshooting history and confirmation
You can check the troubleshooting history with the following procedure if a problem occurs with the air conditioner.
(The troubleshooting history records up to 4 incidents.)
You can check it during operation or when operation is stopped.
• If you check the troubleshooting history during OFF timer operation, the OFF timer will be canceled.
Procedure
Push the OFF timer button for over 10 seconds and
the indicators appear as an image indicating the
troubleshooting history mode has been entered.
If [ Service check] is displayed, the mode enters in the
troubleshooting history mode.
1
• [01: Order of troubleshooting history] appears in the
temperature indicator.
• The OFF timer indicator alternately shows the [check
code] and the [indoor Unit No. ] in which the problem
occurred.
Each time the setting button is pushed, the recorded
troubleshooting history is displayed in sequence.
The troubleshooting history appears in order from [01]
(newest) to [04] (oldest).
CAUTION
2
In the troubleshooting history mode, DO NOT
push the Menu button for over 10 seconds, doing
so deletes the entire troubleshooting history of the
indoor unit.
After you have finished checking, push the ON/OFF
button to return to the regular mode.
3
• If the air conditioner is operating, it remains operated
even after the ON/OFF button has been pushed. To
stop its operation, push the ON/OFF button again.
The indoor Unit No. in which
the problem occurred.
Description of operation
1 2
– 23 –
■
Check codes and parts to be checked
Wired Wireless remote
remote controller Sensor
controller block display of
display receiving unit
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
Communication error between
E11 indoor P.C. board and optional
parts
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
3
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
Judging
Main defective parts 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.
Indoor /Outdoor connecting wires, indoor P.C.
Remote
board, remote controller --- No signal can be sent
controller
to the indoor unit.
Remote controller, network adapter, indoor P.C.
Indoor board --- No data is received from the remote
controller or network adapter.
Indoor /Outdoor connecting 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 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.
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