Toshiba Carrier RAV-SP181BT-UL Installation Manual page 24

 Check codes and parts to be checked
Wired
Wireless remote control
remote
Sensor block display of
control
receiving unit
Main defective parts
display
Operation Timer Ready
Indication Flashing
GR GR OR
No header remote
control
E01
Remote control
communication trouble
Remote control
E02
transmission trouble
Indoor unit-remote
E03 control regular
communication trouble
Indoor unit-outdoor
unit serial
communication trouble Indoor
E04
IPDU-CDB
communication trouble
Duplicated indoor
E08
addresses
Duplicated header
E09
remote controls
CPU-CPU
E10
communication trouble
Header indoor unit-
indoor follower unit
E18
regular communication
trouble
IPDU communication
E31
trouble
Indoor unit heat
F01 ALT exchanger sensor
(TCJ) trouble
Indoor unit heat
F02 ALT exchanger sensor (TC)
trouble
Outdoor unit discharge
F04 ALT temp. sensor (TD)
trouble
Outdoor unit temp.
F06 ALT
sensor (TE/TS) trouble
F07
ALT TL sensor trouble
(F06)
Outdoor unit outside
F08 ALT air temp. sensor
trouble
Indoor unit room temp.
F10 ALT
sensor (TA) trouble
F12
ALT TS sensor trouble
(F06)
F13 Heat sink sensor
ALT
(L29) trouble
F15 Temp. sensor
ALT
(F06) connection trouble
Indoor unit, other P.C.
F29 SIM
board trouble
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Judging
Parts to be checked / trouble description
device
Incorrect remote control setting --- The header remote
control has not been set (including two remote controls).
Remote
control
No signal can be received from the indoor unit.
System interconnection wires, indoor P.C. board, remote
Remote
control
control
--- No signal can be sent to the indoor unit.
Remote control, network adapter, indoor P.C. board ---
Indoor No data is received from the remote control or network
adapter.
System interconnection wires, indoor P.C. board,
outdoor P.C. board --- Serial communication trouble
between indoor unit and outdoor unit
Indoor address setting trouble --- The same address as
Indoor
the self-address was detected.
Remote control address setting trouble --- Two remote
controls are set as header in the double-remote control
Remote
control.
control
(* The header indoor unit stops raising alarm and follower
indoor units continue to operate.)
Indoor P.C. board --- Communication trouble between
Indoor
main MCU and motor microcomputer MCU
Indoor P.C. board --- Regular communication is not
Indoor possible between header and follower indoor units or
between twin header (main) and follower (sub) units.
Outdoor Communication trouble between IPDU and CDB
Heat exchanger sensor (TCJ) , indoor P.C. board ---
Indoor Open-circuit or short-circuit of the heat exchanger sensor
(TCJ) was detected.
Heat exchanger sensor (TC), indoor P.C. board --- Open-
Indoor circuit or short-circuit of the heat exchanger sensor (TC)
was detected.
Outdoor temp. sensor (TD), outdoor P.C. board --- Open-
Outdoor circuit or short-circuit of the discharge temp. sensor was
detected.
Outdoor temp. sensors (TE/TS), outdoor P.C. board ---
Outdoor Open-circuit or short-circuit of the heat exchanger temp.
sensor was detected.
TL sensor may be displaced, disconnected or short-
Outdoor
circuited.
Outdoor temp. sensor (TO), outdoor P.C. board --- Open-
Outdoor circuit or short-circuit of the outdoor air temp. sensor was
detected.
Room temp. sensor (TA), indoor P.C. board --- Open-
Indoor circuit or short-circuit of the room temp. sensor (TA) was
detected.
TS sensor may be displaced, disconnected or short-
Outdoor
circuited.
Abnormal temperature was detected by the temp. sensor
Outdoor
of the IGBT heat sink.
Outdoor Temp. sensor (TE/TS) may be connected incorrectly.
Indoor Indoor P.C. board --- EEPROM trouble
– 23 –
F31
(L29)
Air
H01
conditioner
status
H02
*
H03
H04
* (P04)
H06
Auto-reset
L03
Auto-reset
L07
L08
Auto-reset
L09
L10
*
(L29)
L20
Auto-reset
Auto-reset
L29
Entire stop
L30
Auto-reset
Auto-reset L31
Entire stop P01
P03
Entire stop
P04
Entire stop
P05
Operation (P04)
continued
P07
Auto-reset
P10
Entire stop
P15
(L29)
Entire stop
P19
(L29)
Entire stop
P20
Auto-reset (P04)
Outdoor unit P.C.
SIM Outdoor Outdoor P.C. board ---- In the case of EEPROM trouble.
board
Current detect circuit, power voltage --- Minimum
Outdoor unit frequency was reached in the current releasing control or
compressor Outdoor short-circuit current (Idc) after direct excitation was
breakdown detected
Wiring trouble of compressor (open phase)
Outdoor unit Compressor circuit --- Compressor lock was detected.
Outdoor
compressor lock Wiring trouble of compressor (open phase)
Current detect circuit, outdoor unit P.C. board ---
Outdoor unit current
Outdoor Abnormal current was detected in AC-CT or a phase loss
detect circuit trouble
was detected.
Case thermostat
Outdoor Malfunction of the case thermostat
operation
Outdoor unit low- Current, high-pressure switch circuit, outdoor P.C. board
pressure system Outdoor --- Ps pressure sensor trouble was detected or low-
trouble pressure protective operation was activated.
Duplicated header Indoor address setting trouble --- There are two or more
SIM Indoor
indoor units header units in the group.
Indoor address setting trouble --- There is at least one
Group line in individual
SIM Indoor group-connected indoor unit among individual indoor
indoor unit
units.
Indoor group address Indoor address setting trouble --- Indoor address group
SIM Indoor
not set has not been set.
Indoor power level not
SIM Indoor Indoor power level has not been set.
set
Outdoor unit P.C. In the case of outdoor P.C. board jumper wire (for service)
SIM Outdoor
board setting trouble
Network
Address setting, central control remote control, network
LAN communication adapter
SIM adapter --- Duplication of address in central control
trouble central
communication
control
Other outdoor unit trouble
1) Communication trouble between IPDU MCU and CDB
Other outdoor unit
SIM Outdoor MCU
trouble
2) Abnormal temperature was detected by the heat sink
temp. sensor in IGBT.
Abnormal external
External devices, outdoor unit P.C. board --- Abnormal
SIM input into indoor unit Indoor
stop due to incorrect external input into CN80
(interlock)
Power supply phase sequence, outdoor unit P.C. board -
Phase sequence
SIM Outdoor -- Abnormal phase sequence of the 3-phase power
trouble, etc.
supply
Indoor fan motor, indoor P.C. board --- Indoor AC fan
ALT Indoor unit fan trouble Indoor
trouble (fan motor thermal relay activated) was detected.
Outdoor unit discharge A trouble was detected in the discharge temp. releasing
ALT Outdoor
temp. trouble control.
Outdoor unit high- High-pressure switch --- The IOL was activated or a
ALT pressure system Outdoor trouble was detected in the high-pressure releasing
trouble control using the TE.
The power cable may be connected incorrectly. Check
ALT Open phase detected Outdoor
open phase and voltages of the power supply.
Abnormal temperature was detected by the temp. sensor
ALT Heat sink overheat Outdoor
of the IGBT heat sink.
Drain pipe, clogging of drainage, float switch circuit,
Indoor unit water
ALT Indoor indoor P.C. board --- Drainage is out of order or the float
overflow detected
switch was activated.
There may be gas leakage from the pipe or connecting
ALT Gas leakage detected Outdoor
part. Check for gas leakage.
4-way valve, indoor temp. sensors (TC/TCJ) --- A trouble
Outdoor
ALT 4-way valve trouble was detected due to temperature drop of the indoor unit
(Indoor)
heat exchanger sensor when heating.
High-pressure
ALT Outdoor High-pressure protection
protective operation
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Auto-reset
Entire stop
Entire stop
Entire stop
Operation
continued
(thermostat
OFF)
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Auto-reset
(Auto-reset)
Entire stop
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