Toshiba MML-AP0074NH-E Service Manual page 64

Check code display list (Outdoor unit)
[SMMS-i interface detects error: Main example]
Check code display
Outdoor 7-segment
Auxiliary code
No. of indoor units which received signal
E06
normally
E07 —
E08 Duplicated indoor unit number
01: Indoor/Outdoor communication
E12
02: Communication between Outdoor units
E15 —
00: Capacity over
E16
01 ~ : No. of connected units
00: No center outdoor unit
E19
02: 2 or more center outdoor units
01: Connected to outdoor of other line
E20
02: Connected to indoor of other line
00: Duplicated header units
E21
02: No header unit
E22 —
E23 —
E25 —
E26 Receive error of outdoor address
E28 Detected outdoor unit number
A3-IPDU A3-IPDU
FAN FAN
IPDU IPDU
1 2 3 1 2 3
01 ¡ 0A ¡ ¡
¡ ¡ ¡ ¡
02 0B
¡ ¡ ¡ ¡
03 0C
E31 04 ¡ 0D ¡ ¡ ¡
¡ ¡ ¡ ¡ ¡
05 0E
¡ ¡ ¡ ¡ ¡ ¡
06 0F
07 ¡ ¡ ¡
¡ ¡
08 mark:
Error position.
¡ ¡
09
F04 —
F05 —
01: TE1
F06
02: TE2
F07 —
F08 —
F11 —
F12 —
F15 —
F16 —
F22 —
F23 —
F24 —
F31 —
Sensor lamp display
Block display
TCC-LINK central &
remote controllers
Operation Timer Ready Flash
l l ¥
E06
l l
¥
(E04)
l l
¥
(E08)
l l
¥
E12
l l
¥
E15
l l
¥
E16
l l
¥
E19
l l ¥
E20
l l
¥
E21
l l ¥
E22
l l
¥
E23
l l ¥
E25
l l
¥
E26
l l
¥
E28
l l ¥
E31
¥ ¥ ¡
F04
A
¥ ¥ ¡
F05 A
¥ ¥ ¡
F06 A
¥ ¥ ¡
F07 A
¥ ¥ ¡
F08 A
F11 —
¥ ¥ ¡
F12 A
¥ ¥ ¡
F15 A
¥ ¥ ¡
F16 A
¥ ¥ ¡
F22 A
¥ ¥ ¡
F23 A
F24 ¥ ¥ ¡ A
¥ ¥ ¡
F31 S
(∗) ¡: Goes on, ¥: Flashes, l: Goes off
A (Alternate)
S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED.
Main defective position
Decrease of quantity of indoor units No communication from indoor unit
(Decrease of connected indoor units)
Indoor/Outdoor communication circuit error Signal cannot be sent to indoor unit.
(→There is no communication from outdoor unit.)
Duplicated indoor address There are multiple indoor units having the same address.
(Detected also at indoor unit side)
Automatic address start error Automatic indoor address operation while setting automatic address of other system
Outdoor automatic address operation while setting automatic indoor address
There is none during auto addressing. There is no signal receiving from outdoor unit during automatic addressing.
No. of connected indoor units: Total capacity of indoor units exceeded (total capacity of outdoor units × 135%)
Over capacity
No. of center outdoor units error There is no center outdoor unit or there are 2 or more outdoor units in 1 line.
Connected to other line during automatic Indoor unit of other line was detected during automatic address is been setting.
addressing
Header heat unit quantity error There is no header heat unit in the system, or there are multiple header units.
Decrease of heat unit quantity No communication from heat unit (Decrease of connected heat units)
Send error communication between Sending to other outdoor is unavailable.
outdoor units
Duplicated terminal outdoor address setting Manually set outdoor address was duplicated.
Decrease of connected outdoor units No communication from terminal outdoor unit
(Decrease of connected terminal outdoor units)
Terminal outdoor error Center outdoor unit detected terminal outdoor unit error.
(For terminal outdoor unit, details are displayed.)
IPDU communication error No communication of each IPDU (P .C. board) in inverter box
Outdoor discharge temp. sensor (TD1) error Open/Short of outdoor discharge temp. sensor (TD1) was detected.
Outdoor discharge temp. sensor (TD2) error Open/Short of outdoor discharge temp. sensor (TD2) was detected.
Outdoor heat exchanger temp. sensor Open/Short of heat exchanger temp. sensor (TE1, TE2) was detected.
(TE1, TE2) error
Outdoor liquid temp. sensor (TL) error Open/Short of outdoor liquid temp. sensor (TL) was detected.
Outdoor outer air temp. sensor (TO) error Open/Short of outer air temp. sensor (TO) was detected.
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Outdoor suction temp. sensor (TS1) error Open/Short of outdoor suction temp. sensor (TS1) was detected.
Outdoor temp. sensor (TE1, TL) miswiring Miswiring by temp. sensor (TE1, TL) was detected.
Outdoor pressure sensor (Pd, Ps) miswiring Miswiring by outdoor pressure sensor (Pd, Ps) was detected.
Outdoor discharge temp. sensor (TD3) error Open/Short of outdoor discharge temp. sensor (TD3) was detected.
Low pressure (Ps) sensor error Output voltage of low pressure (Ps) sensor detected 0.
High pressure (Pd) sensor error Output voltage of high pressure (Pd) sensor detected 0 or error value was
detected during stop of compressor.
Outdoor EEPROM error Outdoor EEPROM error
(Center unit stops alarm and terminal unit continues operation.).
: Flashing condition is alternate when there are two flashing LED.
Description
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