Toshiba RAV-SM454MUT-E Installation Manual page 23

Compact 4-way Cassette Type
Wired
Wireless remote controller
remote
Sensor block display of
controller
receiving unit
display
Main defective parts
Operation Timer
Ready
Indication Flashing
GR GR OR
Outdoor unit P.C.
F31 SIM
board
Outdoor unit
H01 compressor
breakdown
Outdoor unit
H02
compressor lock
Outdoor unit current
H03
detect circuit error
Case thermostat
H04
operation
Outdoor unit low-
H06
pressure system error
Duplicated header
L03 SIM
indoor units
Group line in
L07 SIM individual indoor unit
Indoor group address
L08 SIM
not set
Indoor unit capacity
L09 SIM
not set
Outdoor unit P.C.
L10 SIM
board
LAN communication
L20 SIM
error
Other outdoor unit
L29 SIM
error
Abnormal external
L30 SIM input into indoor unit
(interlock)
Phase sequence
L31 SIM
error, etc.
P01 ALT Indoor unit fan error
Outdoor unit
P03 ALT discharge temp. error Outdoor
Outdoor unit high-
P04 ALT pressure system error Outdoor
P05 ALT Open phase detected Outdoor
P07 ALT Heat sink overheat
Indoor unit water
P10 ALT
overflow detected
The fan error of the
P12 ALT
indoor unit
43-EN
Installation Manual
Judging
Parts to be checked / error description
device
Outdoor P.C. board ---- In the case of EEPROM error. Entire
Outdoor
Current detect circuit, power voltage --- Minimum
frequency was reached in the current releasing
Outdoor
control or short-circuit current (Idc) after direct
excitation was detected
Compressor circuit --- Compressor lock was detected. Entire
Outdoor
Current detect circuit, outdoor unit P.C. board ---
Outdoor Abnormal current was detected in AC-CT or a phase
loss was detected.
Outdoor Malfunction of the case thermostat
Current, high-pressure switch circuit, outdoor P.C.
Outdoor board --- Pressure sensor error was detected or low-
pressure protective operation was activated.
Indoor address setting error --- There are two or more
Indoor
header units in the group.
Indoor address setting error --- There is at least one
Indoor group-connected indoor unit among individual indoor
units.
Indoor address setting error --- Indoor address group
Indoor
has not been set.
Indoor Indoor unit capacity has not been set.
In the case of outdoor P.C. board jumper wire (for
Outdoor
service) setting error
Network
Address setting, central control remote controller,
adapter
network adapter --- Duplication of address in central
central
control communication
control
Other outdoor unit error
1) Communication error between IPDU MCU and
Outdoor
CDB MCU
2) Abnormal temperature was detected by the heat
sink temp. sensor in IGBT.
External devices, outdoor unit P.C. board ---
Indoor Abnormal stop due to incorrect external input into
CN80
Power supply phase sequence, outdoor unit P.C.
Outdoor board --- Abnormal phase sequence of the 3-phase
power supply
Indoor fan motor, indoor P.C. board --- Indoor AC fan
Indoor
error (fan motor thermal relay activated) was detected.
An error was detected in the discharge temp.
releasing control.
High-pressure switch --- The IOL was activated or an
error was detected in the high-pressure releasing
control using the TE.
The power wire may be connected incorrectly. Check
open phase and voltages of the power supply.
Abnormal temperature was detected by the temp.
Outdoor
sensor of the IGBT heat sink.
Drain pipe, clogging of drainage, float switch circuit,
Indoor indoor P.C. board --- Drainage is out of order or the
float switch was activated.
Abnormal operation of the indoor fan motor, indoor
Indoor P.C. board, or indoor DC fan (over current or lock,
etc.) is detected.
Compact 4-way Cassette Type
Wired
Wireless remote controller
remote
Sensor block display of
controller
Air
receiving unit
display
conditioner
status
Operation Timer
Ready
Indication Flashing
GR GR OR
P15 ALT
stop
Entire P19 ALT
stop
P20 ALT
stop
P22 ALT
Entire
stop
Entire P26 ALT
stop
Entire P29 ALT
stop
Entire
P31 ALT
stop
Entire
stop
: Lighting : Flashing : OFF
ALT: When two LEDs are flashing, they flash alternately. SIM: When two LEDs are flashing, they flash in synchronization.
Entire
stop Receiving unit display OR: Orange GR: Green
Entire
stop
Entire
stop
Auto-
reset
Entire
stop
Entire
stop
Entire
stop
Operation
continued
(thermost
at OFF)
Entire
stop
Entire
stop
Entire
stop
Entire
stop
Entire
stop
Entire
stop
Entire
stop
– 22 –
Judging
Main defective parts Parts to be checked / error description
device
Gas leakage There may be gas leakage from the pipe or
Outdoor
detected connecting part. Check for gas leakage.
4-way valve, indoor temp. sensors (TC/TCJ) --- An
Outdoor
4-way valve error error was detected due to temperature drop of the
(Indoor)
indoor unit heat exchanger sensor when heating.
High-pressure
Outdoor High-pressure protection
protective operation
Outdoor unit fan motor, outdoor unit P.C. board --- An
Outdoor unit fan error Outdoor error (overcurrent, locking, etc.) was detected in the
outdoor unit fan drive circuit.
IGBT, outdoor unit P.C. board, inverter wiring,
Outdoor unit inverter
Outdoor compressor --- Short-circuit protection for compressor
Idc activated
drive circuit devices (G-Tr/IGBT) was activated.
Outdoor unit position Outdoor unit P.C. board, high-pressure switch ---
Outdoor
error Compressor motor position error was detected.
Another indoor unit in the group is raising an alarm.
Other indoor unit
Indoor
error
E03/L07/L03/L08 alarm check locations and error
description
: The air conditioner automatically enters the auto-address setting mode.
Installation Manual
Air
conditioner
status
Entire
stop
Auto-
reset
Entire
stop
Entire
stop
Entire
stop
Entire
stop
Entire
stop
Auto-
reset
EN
44-EN