Toshiba MMY-MAP0804HT8-E Service Manual page 182

Outdoor 7-segment display
Main
remote
Check
controller
code
E31 E31
F01 –
F02 –
F03 –
F04 F04
F05 F05
F06 F06
F07 F07
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Check code
Location
AI-NET central
of
control
detection
remote
Sub-code
controller
I/F
A3-IPDU Fan
1 2 3 IPDU
01 O
02 O
O O
03
O
04
05 O O
06 O O
07 O O O
O
08
CF
O O
09
0A O O
O O O
0B
0C O O
O O O
0D
O O O
0E
0F O O O O
Symbol O
signifies site of
IPDU error.
Indoor
unit
– 0F
Indoor
unit
– 0d
Indoor
unit
– 93
I/F
– 19
I/F
– A1
01: I/F
TE1 sensor error
02:
TE2 sensor error 18
I/F
– 18
manuals search engine
Description System status
IPDU All stop Communication is disrupted
communication between IPDUs (P.C.
error boards) in inverter box.
Indoor TCJ Stop of Sensor resistance is infinity
sensor error corresponding or zero (open/short circuit).
unit
Indoor TC2 Stop of Sensor resistance is infinity
sensor error corresponding or zero (open/short circuit).
unit
Indoor TC1 Stop of Sensor resistance is infinity
sensor error corresponding or zero (open/short circuit).
unit
TD1 sensor All stop Sensor resistance is infinity
error or zero (open/short circuit).
TD2 sensor All stop Sensor resistance is infinity
error or zero (open/short circuit).
TE1/TE2 All stop Sensor resistance is infinity
sensor error or zero (open/short circuit).
TL sensor error All stop Sensor resistance is infinity
or zero (open/short circuit).
181
Error detection
Check items (locations)
condition(s)
• Check wiring and
connectors involved in
communication between
IPDU-I/F P.C. board for
bad contact or broken wire.
• Check for defect in outdoor
P.C. board (I/F, A3-IPDU
or Fan IPDU).
• Check for external noise.
• Check connection of TCJ
sensor connector and
wiring.
• Check resistance
characteristics of TCJ
sensor.
• Check for defect in indoor
P.C. board.
• Check connection of TC2
sensor connector and
wiring.
• Check resistance
characteristics of TC2
sensor.
• Check for defect in indoor
P.C. board.
• Check connection of TC1
sensor connector and
wiring.
• Check resistance
characteristics of TC1
sensor.
• Check for defect in indoor
P.C. board.
• Check connection of TD1
sensor connector.
• Check resistance
characteristics of TD1
sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TD2
sensor connector.
• Check resistance
characteristics of TD2
sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TE1/
TE2 sensor connectors.
• Check resistance
characteristics of TE1/TE2
sensors.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TL
sensor connector.
• Check resistance
characteristics of TL
sensor.
• Check for defect in outdoor
P.C. board (I/F).