Toshiba MMW-AP0271LQ-E Manuel D'installation page 68

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In addition to the CODE No. on the remote controller of an indoor unit, you can diagnose failure type of an outdoor unit by
checking the 7-segment display on the interface P.C. board.
Use the function for various checks.
Set every DIP switch to OFF after checking.
7-Segment display and check code
Rotary switch setting value
SW01
SW02
SW03
1
1
1
Outdoor unit check code
* If a check code has an auxiliary code, the display indicates the check code for three seconds and the auxiliary
code for one second alternately.
Check code (indicated on the 7-segment display on the outdoor unit) for SMMS-e and SHRM-e Series (MMY-***)
Indicated when SW01 = [1], SW02 = [1], and SW03 = [1].
Check code
Indication on 7-segment display on the outdoor unit
Auxiliary code
A01
Detected Hot water module address
A02
Detected Hot water module address
A03
Detected Hot water module address
Number of indoor units and Hot Water Module which
E06
received normally
E07
E08
Duplicated indoor addresses
01: Communication between indoor and outdoor units
E12
02: Communication between outdoor units
E15
00: Capacity over
E16
01~: Number of connected units
00: Header is nothing
E19
02: 2 or more header units
01: Other line outdoor connected
E20
02: Other line indoor connected
E23
E25
E26
Number of outdoor units which received normally
E28
Detected outdoor unit number
(*1)
E31
IPDU quantity information
E31
80
F04
F05
01: TE1 sensor
F06
02: TE2 sensor
F07
01: TL1 sensor
F08
133-EN
D600
D601 D602 D603 D604
Indication
LED
A
Outdoor unit number
A
(U
to U
1
B
Check code display*
Check code name
Flow switch operation trouble
Water temperature decrease trouble
Activation of water heat exchanger frost protection
Decrease of number of indoor units and Hot Water
Module
Indoor / outdoor communication circuit trouble
Duplication of indoor addresses.
Automatic addressing start trouble
No indoor unit during automatic addressing
Capacity over / number of connected indoor units
Number of header outdoor unit trouble
Other lines connected during automatic addressing
Communication transmission trouble between outdoor
units
Duplicated follower outdoor address set up
Decrease of connected outdoor units
Follower outdoor unit trouble
IPDU communication trouble
Communication trouble between MCU and sub MCU
TD1 sensor trouble
TD2 sensor trouble
TE1 sensor trouble
TE2 sensor trouble
TL1 sensor trouble
TO sensor trouble
– 67 –
Indication on 7-segment display on the outdoor unit
01: TS1 sensor
F12
02: TS2 sensor
01: Compressor 1
F13
02: Compressor 2
F15
F16
B
F23
F24
)
3
F31
01: Compressor 1
H01
02: Compressor 2
01: Compressor 1
H02
02: Compressor 2
01: Compressor 1
H03
02: Compressor 2
H05
H06
H07
Detected outdoor unit number
01: TK1 sensor trouble
02: TK2 sensor trouble
H08
04: TK4 sensor trouble
05: TK5 sensor trouble
H15
01: TK1 oil circuit trouble
02: TK2 oil circuit trouble
H16
04: TK4 oil circuit trouble
05: TK5 oil circuit trouble
J10
Detected indoor unit address
L02
Model mismatch of indoor and outdoor unit
L04
L06
Number of prior indoor units
L08
L10
L12
01: Flow selector unit (s) installation trouble
L17
L18
Detected indoor unit address
01: Clean Converter setting trouble
L23
02: Hot Water Module setting trouble
01: Duplication of flow selector unit address
L24
02: Indoor unit (s) operation mode priority setting
L28
L29
IPDU number information
L30
Detected indoor unit address
L31
P03
01: Compressor 1
P04
02: Compressor 2
Check code
Auxiliary code
TS1 or TS2 sensor trouble
TH (Heat sink) sensor trouble
Outdoor temp. sensor miswiring (TE1, TL1)
Outdoor pressure sensor miswiring (Pd, Ps)
Ps sensor trouble
Pd sensor trouble
Outdoor EEPROM trouble
Compressor breaking down
Compressor trouble (Locked)
Current detection circuit trouble
TD1 sensor miswiring
Low pressure protective operation
Oil level down detection
(Indicated only on the header outdoor unit)
Temperature sensor trouble for oil level
TD2 sensor miswiring
Oil level detector circuit trouble
Flow selector units overflow trouble
System shutdown trouble from indoor unit
Outdoor system address duplication
Duplication of indoor units with priority
Indoor unit group / address unset
Outdoor unit capacity unset.
Flow selector unit (s) system trouble
Inconsistent models of outdoor units
Flow selector unit trouble
Setting trouble
Flow selector unit (s) setting trouble
Outdoor connected quantity over
(*1)
IPDU quantity trouble
External interlock of indoor unit
Compressor IPDU trouble
Discharge temperature TD1 trouble
High-pressure SW system operation
Check code name
134-EN

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