Troubleshooting - Toshiba Carrier MMY-MAP0726FT9P-UL Manuel D'installation

11

Troubleshooting

In addition to the CODE No. on the remote control 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)
Indicated when SW01 = [1], SW02 = [1], and SW03 = [1].
Check code
Indication on 7-segment display on the outdoor unit
Auxiliary code
E06 Number of indoor units which 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 No.
E31 IPDU quantity information (*1)
E31 80
F04 —
F05 —
01: TE1 sensor
F06
02: TE2 sensor
F07 01: TL1 sensor
F08 —
57-EN
1122001101-2_EN_FR.indb 29 1122001101-2_EN_FR.indb 29
D600 D601 D602 D603 D604
Indication LED
A B
Outdoor unit number
A
(U to U )
1 3
B Check code display*
Check code name
Decrease of number of indoor units
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
– 29 –
Check code
Indication on 7-segment display on the outdoor unit
Auxiliary code
01: TS1 sensor
F12
02: TS2 sensor
01: Compressor 1
F13
02: Compressor 2
F15 —
F16 —
F23 —
F24 —
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 No.
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 —
L04 —
L06 Number of prior indoor units
L08 —
L10 —
L12 01: Flow selector unit(s) installation trouble
L17 —
L18 Detected indoor unit address
L23 01: Clean Converter setting trouble
01: Duplication of flow selector unit address
L24
02: Indoor unit(s) operation mode priority setting
L28 —
L29 IPDU number information (*1)
L30 Detected indoor unit address
L31 —
Check code name
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
Outdoor units model disagreement trouble
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
IPDU quantity trouble
External interlock of indoor unit
Compressor IPDU troubles
58-EN
2/18/17 4:32 PM 2/18/17 4:32 PM