Toshiba MMY-MAP0804HT8JP - Page 170

– 169 –
MG-CTT: Magnet contactor
sUDPI fo rebmun ni rorrEMIS92L92L
There are insufficient number of IPDUs (P.C.
boards) in inverter box.
MIS)03L(.oN tinu roodni detceteD03L
Indoor external error input
(interlock)
Indoor unit has been shut down for external error
input in one refrigerant line (detected by indoor
unit).
TLA30P–30P
Outdoor discharge (TD1)
temperature error
Outdoor discharge temperature sensor (TD1) has
detected abnormally high temperature.
P05
00: Open phase detected
TLA50P
Open phase/power failure
Open phase is detected when power is turned on.
Inverter DC voltage is too high (overvoltage) or too
low (undervoltage).
01: Compressor 1
02: Compressor 2
03: Compressor 3
Inverter DC voltage (Vdc)
error
MG-CTT error
P07
01: Compressor 1
02: Compressor 2
03: Compressor 3
TLA70P
Heat sink overheating
error
Temperature sensor built into IGBT (TH) detects
overheating.
wolfrevo tinu roodnITLA)01P(detceted .oN tinu roodnI01P
Indoor unit has been shutdown in one refrigerant
line due to detection of overflow (detected by
indoor unit).
TLA31P–31P
Outdoor liquid backflow
detection error
State of refrigerant cycle circuit indicates liquid
backflow operation.
P15
01: TS condition
02: TD condition
noitce
ted kael saGTLA51P
Outdoor suction temperature sensor (TS1) detects
sustained and repeated high temperatures that
exceed standard value.
TLA71P–71P
Outdoor discharge (TD2)
temperature error
Outdoor discharge temperature sensor (TD2)
detects abnormally high temperature.
TLA81P–81P
Outdoor discharge (TD3)
temperature error
Outdoor discharge temperature sensor (TD3)
detects abnormally high temperature.
TLA91Pdetceted .oN tinu roodtuO91P
4-way valve reversing
error
Abnormality in refrigerating cycle is detected
during heating operation.
TLA02P–02P
Activation of high-pressure
protection
High pressure (Pd) sensor detects high pressure
that exceeds standard value.
Check code
Display of receiving unit
Typical fault site Description of error
Outdoor 7-segment display
TCC-LINK
central control
or main remote
controller
display
Indicator light block
Sub-code
Flash
Operation Timer Read
y
01
02
03
04
05
06
07
08
09
12
A3-IPDU Fan
IPDU
Fan
IPDU
3
0A
0B
0C
0D
0E
0F
12
A3-IPDU
O
O
O
O
O
O
O
O
3
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Circle (O):
Faulty IPDU