Toshiba MMY-MAP0806HT8JP-E, Installation Manual

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11
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 LED
D600
A B
D601 D602 D603 D604
SW01 SW02 SW03
1 1 1 Outdoor unit check code
A
Outdoor unit number
(U
1
to U
3
)
B Check code display*
* 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
Check code name Indication on 7-segment display on the outdoor unit
Auxiliary code
E06 Number of indoor units which received normally Decrease of number of indoor units
E07 — Indoor/outdoor communication circuit error
E08 Duplicated indoor addresses Duplication of indoor addresses.
E12
01: Communication between indoor and outdoor units
02: Communication between outdoor units
Automatic addressing start error
E15 — No indoor unit during automatic addressing
E16
00: Capacity over
01~: Number of connected units
Capacity over / number of connected indoor units
E19
00: Header is nothing
02: 2 or more header units
Number of header outdoor unit error
E20
01: Other line outdoor connected
02: Other line indoor connected
Other lines connected during automatic addressing
E23 — Sending error between outdoor units communication
E25 — Duplicated follower outdoor address set up
E26 Number of outdoor units which received normally Decrease of connected outdoor units
E28 Detected outdoor unit No. Follower outdoor unit error
E31 IPDU quantity information
(*1)
IPDU communication error
E31 80 Communication error between MCU and sub MCU
F04 — TD1 sensor error
F05 — TD2 sensor error
F06
01: TE1 sensor
02: TE2 sensor TE1 sensor error
TE2 sensor error
F07
01: TL1 sensor
02: TL2 sensor
03: TL3 sensor
TL1,TL2 or TL3 sensor error
F08 — TO sensor error
F09
01: TG1 sensor
02: TG2 sensor
TG1 or TG2 sensor error
F12
01: TS1 sensor
03: TS3 sensor
TS1 or TS3 sensor error
F13
01: Compressor 1
02: Compressor 2
TH (Heat sink) sensor error
Check code
Check code name Indication on 7-segment display on the outdoor unit
Auxiliary code
F15 — Outdoor temp. sensor miswiring (TE1, TL1)
F16 — Outdoor pressure sensor miswiring (Pd, Ps)
F23 — Ps sensor error
F24 — Pd sensor error
F31 — Outdoor EEPROM error
H01
01: Compressor 1
02: Compressor 2
Compressor breaking down
H02
01: Compressor 1
02: Compressor 2
Compressor error (Locked)
H03
01: Compressor 1
02: Compressor 2
Current detection circuit error
H05 — TD1 sensor miswiring
H06 — Low pressure protective operation
H07 — Oil level down detection
H08
01: TK1 sensor error
02: TK2 sensor error
04: TK4 sensor error
05: TK5 sensor error
Temperature sensor error for oil level
H15 — TD2 sensor miswiring
H16
01: TK1 oil circuit error
02: TK2 oil circuit error
04: TK4 oil circuit error
05: TK5 oil circuit error
Oil level detector circuit error
L02 Model mismatch of indoor and outdoor unit System shutdown error from indoor unit
L04 — Outdoor system address duplication
L06 Number of prior indoor units Duplication of indoor units with priority
L08 — Indoor unit group/address unset
L10 — Outdoor unit capacity unset.
L17 — Inconsistent models of outdoor units
L28 — Outdoor connected quantity over
L29 IPDU number information
(*1)
IPDU quantity error
L30 Detected indoor unit address External interlock of indoor unit
L31 — Other compressor errors
P03 — Discharge temperature TD1 error
P04
01: Compressor 1
02: Compressor 2
High-pressure SW system operation
P05
00: Phase missing detection/Phase order error
01: Compressor 1
02: Compressor 2
Compressor Vdc error
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