Toshiba RAV-SM2242DT-E Service Manual page 101

Concealed Duct High Static Pressure
n Error codes and parts to be checked
Wired remote
controller
Judging
Main defective parts
display
device
Indication
No header remote controller
Remote
E01
controller
Remote controller communication error
Remote
E02 Remote controller transmission error
controller
Indoor unit-remote controller regular
E03 Indoor
communication error
Indoor unit-outdoor unit serial
communication error
E04 Indoor
IPDU-CDB communication error
«
E08 Duplicated indoor addresses Indoor
Remote
E09 Duplicated header remote controllers
controller
E10 CPU-CPU communication error Indoor
Header indoor unit-indoor follower unit
E18 Indoor
regular communication error
E31 IPDU communication error Outdoor
Indoor unit heat exchanger sensor
F01 Indoor
(TCJ) error
Indoor unit heat exchanger sensor (TC)
F02 Indoor
error
Outdoor unit discharge temp. sensor
F04 Outdoor
(TD) error
Outdoor unit temp. sensor (TE/TS)
F06 Outdoor
error
F07 TL sensor error Outdoor
Outdoor unit outside air temp. sensor
F08 Outdoor
error
Indoor unit room temp. sensor (TA)
F10 Indoor
error
F12 TS (1) sensor error Outdoor
F13 Heat sink sensor error Outdoor
F15 Temp. sensor connection error Outdoor
F29 Indoor unit, other P .C. board error Indoor
F31 Outdoor unit P .C. board Outdoor
H01 Outdoor unit compressor breakdown Outdoor
H02 Outdoor unit compressor lock Outdoor
H03 Outdoor unit current detect circuit error Outdoor
H04 Case thermostat operation (1) Outdoor
H06 Outdoor unit low-pressure system error Outdoor
Installation Manual
Parts to be checked / error description
Incorrect remote controller setting – The header remote controller
has not been set (including two remote controllers).
No signal can be received from the indoor unit.
System interconnecting wires, indoor P .C. board, remote controller –
No signal can be sent to the indoor unit.
Remote controller, network adapter, indoor P .C. board – No data is
received from the remote controller or network adapter.
System interconnecting wires, indoor P .C. board, outdoor P .C. board.
– Serial communication error between indoor unit and outdoor unit
Indoor address setting error –
The same 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.
(∗ The header indoor unit stops raising alarm and follower indoor
units continue to operate.)
Indoor P .C. board – Communication error between main MCU and
motor microcomputer MCU
Indoor P .C. board –
Regular communication is not possible between header and follower
indoor units or between twin header (main) and follower (sub) units.
Communication error between IPDU and CDB
Heat exchanger sensor (TCJ), indoor P .C. board – Open-circuit or
short-circuit of the heat exchanger sensor (TCJ) was detected.
Heat exchanger sensor (TC), indoor P .C. board – Open-circuit or
short-circuit of the heat exchanger sensor (TC) was detected.
Outdoor temp. sensor (TD), outdoor P .C. 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 of the heat exchanger temp. sensor was detected.
TL sensor may be displaced, disconnected or short-circuited.
Outdoor temp. sensor (TO), outdoor P .C. board – Open-circuit or
short-circuit of the outdoor air temp. sensor was detected.
Room temp. sensor (TA), indoor P .C. board – Open-circuit or short-
circuit of the room temp. sensor (TA) was detected.
TS (1) sensor may be displaced, disconnected or short-circuited.
Abnormal temperature was detected by the temp. sensor of the IGBT
heat sink.
Temp. sensor (TE/TS) may be connected incorrectly.
Indoor P .C. board – EEPROM error
Outdoor P .C. board – In the case of EEPROM error.
Current detect circuit, power voltage –
Minimum frequency was reached in the current releasing control or
short-circuit current (Idc) after direct excitation was detected
Compressor circuit – Compressor lock was detected.
Current detect circuit, outdoor unit P .C. board – Abnormal current
was detected in AC-CT or a phase loss was detected.
Malfunction of the case thermostat.
Current, high-pressure switch circuit, outdoor P .C. board –
Ps pressure sensor error was detected or low-pressure protective
operation was activated.
– 39 –
Concealed Duct High Static Pressure
Wired remote
Air
controller
Main defective parts
conditioner display
status
Indication
L03 Duplicated header indoor units
∗
Group line in individual indoor unit
L07
«
∗
L08 Indoor group address not set
L09 Indoor power level not set
Auto-reset
L10 Outdoor unit P .C. board
Auto-reset
L20 LAN communication error
Auto-reset
L29 Other outdoor unit error
∗
Abnormal external input into
L30
indoor unit (interlock)
Auto-reset
L31 Phase sequence error, etc.
Auto-reset
P01 Indoor unit fan error
Entire stop
P03 Outdoor unit discharge temp. error
Auto-reset
Outdoor unit high-pressure system
P04
error
Auto-reset
P05 Open phase detected
Entire stop
P07 Heat sink overheat
Entire stop
Indoor unit water overflow
P10
detected
Entire stop
P15 Gas leakage detected
Operation
continued
P19 4-way valve error
Auto-reset
P20 High-pressure protective operation
Entire stop
P22 Outdoor unit fan error
Entire stop
Entire stop
P26 Outdoor unit inverter Idc activated
Auto-reset
Entire stop
P29 Outdoor unit position error
Entire stop
P31 Other indoor unit error
Entire stop
« : The air conditioner automatically enters the auto-address setting mode.
Entire stop
Entire stop
Entire stop
Judging
Parts to be checked / error description
device
Indoor Indoor address setting error –
«
There are two or more header units in the group.
Indoor address setting error – There is at least one group-connected
Indoor
indoor unit among individual indoor units.
«
Indoor Indoor address setting error – Indoor address group has not been set.
Indoor Indoor power level has not been set.
Outdoor In the case of outdoor P .C. board jumper wire (for service) setting error.
Network Address setting, central control remote controller, network adapter
adapter – Duplication of address in central control communication.
central control
Other outdoor unit error Entire stop
1) Communication error between IPDU MCU and CDB MCU
Outdoor
2) Abnormal temperature was detected by the heat sink temp.
sensor in IGBT.
Indoor External devices, outdoor unit P .C. board – Abnormal stop due to
incorrect external input into CN80
Power supply phase sequence, outdoor unit P .C. board
Outdoor
– Abnormal phase sequence of the 3-phase power supply
Indoor fan motor, indoor P .C. board – Indoor AC fan error
Indoor
(fan motor thermal relay activated) was detected.
Outdoor An error was detected in the discharge temp. releasing control.
High-pressure switch – The IOL was activated or an error was
Outdoor
detected in the high-pressure releasing control using the TE.
The power supply wire may be connected incorrectly.
Outdoor
Check open phase and voltages of the power supply.
Abnormal temperature was detected by the temp. sensor of the IGBT
Outdoor
heat sink.
Drain pipe, clogging of drainage, float switch circuit, indoor P .C. board
Indoor
– Drainage is out of order or the float switch was activated.
There may be gas leakage from the pipe or connecting part.
Outdoor
Check for gas leakage.
4-way valve, indoor temp. sensors (TC/TCJ)
Outdoor
– An error was detected due to temperature drop of the indoor unit
(Indoor)
heat exchanger sensor when heating.
Outdoor High-pressure protection
Outdoor unit fan motor, outdoor unit P .C. board – An error (overcurrent,
Outdoor
locking, etc.) was detected in the outdoor unit fan drive circuit.
IGBT, outdoor unit P .C. board, inverter wiring, compressor
Outdoor – Short-circuit protection for compressor drive circuit devices
(G-Tr/IGBT) was activated.
Outdoor unit P .C. board, high-pressure switch
Outdoor
– Compressor motor position error was detected.
Another indoor unit in the group is raising an alarm.
Indoor
E03/L07/L03/L08 alarm check locations and error description
– 40 –
Installation Manual
Air
conditioner
status
Entire stop
Entire stop
Entire stop
Entire stop
Entire stop
Auto-reset
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
Entire stop
Entire stop
Entire stop
Entire stop
Auto-reset