Troubleshooting - Toshiba MMY-MUP0801HT8P-E Installationsanleitung

13

Troubleshooting

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
Indication
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 not detected
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
E31 Inverter quantity information (*1)
E31 80
F04 —
F05 —
01: TE1 sensor
F06 02: TE2 sensor
03: TE3 sensor
01: TL1 sensor
F07 02: TL2 sensor
03: TL3 sensor
F08 —
171-EN
IM_1141001201-2_Book.indd 86 IM_1141001201-2_Book.indd 86
7 - segment
LED
[U. .E r r ] [ . ]
Display alternately every 2 seconds
Display
: Outdoor Unit No.(1~5)
contents
: Check code
: Sub code
Check code name
• Decrease of number of indoor units
• In TU2C-LINK communication system, if the
termination resistance is not set in any of the
indoor units. (In TU2C-LINK communication
system only.)
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
Sending error between outdoor units communication
Duplicated follower outdoor address set up
Decrease of connected outdoor units
Follower outdoor unit trouble
Inverter communication trouble
Communication trouble between MCU and sub MCU
TD1 sensor trouble
TD2 sensor trouble
TE1, TE2 or TE3 sensor trouble
TL1, TL2 or TL3 sensor trouble
TO sensor trouble
Check code
Indication on 7-segment display on the outdoor unit
Auxiliary code
01: TG1 sensor
F09 02: TG2 sensor
03: TG3 sensor
01: TS1 sensor
F12 03: TS3 sensor
04: TS3 detached
1 : Compressor 1 side
F13
2 : Compressor 2 side
F15 —
F16 —
F23 —
F24 —
F31 —
1 : Compressor 1 side
H01
2 : Compressor 2 side
1 : Compressor 1 side
H02
2 : Compressor 2 side
1 : Compressor 1 side
H03
2 : Compressor 2 side
H05 —
H06 —
H07 —
01: TK1 sensor trouble
H08
02: TK2 sensor trouble
H15 —
01: TK1 oil circuit trouble
H16
02: TK2 oil circuit trouble
1 : Compressor 1 side
H17
2 : Compressor 2 side
L02 Detected indoor unit address
L04 —
L06 Number of prior indoor units
L08 —
L10 —
L17 —
L23 02: HWM (Hot Water Module)
L28 —
00 : when there are many inverter P.C. board.
L29
: Inverter number information
(*1)
L30 Detected indoor unit address
L31 —
P03 —
01: Compressor 1 side
P04
02: Compressor 2 side
1 : Compressor 1 side
2 : Compressor 2 side
P05
00: Power detection trouble
01: Phase missing detection
02: Phase order trouble
– 86 –
Check code name
TG1,TG2 or TG3 sensor trouble
TS1 or TS3 sensor trouble
TH (Heat sink) sensor trouble
Outdoor Temperature 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
Temperature sensor trouble for oil level
TD2 sensor miswiring
Oil level detector circuit trouble
Compressor trouble (step out)
Model mismatch of indoor and outdoor unit
Outdoor system address duplication
Duplication of indoor units with priority
Indoor unit group/address unset
Outdoor unit capacity unset.
Inconsistent models of outdoor units
Switch setting trouble of outdoor unit
Outdoor units mismatch
Inverter quantity trouble
External interlock of indoor unit
Other compressor troubles
Discharge temperature TD1 trouble
High-pressure SW system operation
Inverter DC voltage (Vdc) trouble
(compressor) MG-CTT trouble
EN
Detection of open phase/phase sequence
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