Toshiba MMY-MAP0804FT7(Z), Service Manual, Page: 224 / 333

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No No
No
Ye
s
Ye
s
Ye
s
Ye
s
No
[P2
9
]
[P31]
Chec
k code
Cause
Chec
k code name
Chec
k code
Cause
Chec
k code name
Compressor position detectiv
e
circuit error
1.
Wire/connector connection error
2.
Compressor error
3.
A3-IPDU P
.C
. board error
Other indoor error (Group f
ollo
w
er unit error)
Another indoor unit in the g
roup is abnor
mal.
Sub-code:
01:
Compressor 1, 02:
Compressor 2, 03:
Compressor 3
Are connector
connection and wir
ing
nor
mal?
Is the unit g
rounded?
Is not winding
shor
ted? (Is winding
resistance 0.1 to
0.4
Ω
?)
Is not winding
opened?
Chec
k and correct circuit and
cab
les such as wir
ing to
compressor
, etc.
Compressor error
→
Replace
Compressor error
→
Replace
Compressor error
→
Replace
Chec
k A3-IPDU P
.C
. board.
F
ailure
→
Replace
When the header unit of the g
roup detected error [E03], [L03], [L07] or [L08], the f
ollo
w
er unit of the g
roup displa
ys
[P31] error and stops
. There are no chec
k code displa
y and alar
m record of the main remote controller
.
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
No No No No No
[P26]
Chec
k code
Cause
Chec
k code name
G-T
r shor
t-circuit protection error
1.
Outdoor unit po
w
er error
2.
IPDU error/Wire connection error
3.
Compressor error
4.
IPDU P
.C
. board error
Is po
w
er v
oltage
of outdoor unit
nor
mal?
Is wire connector
connection on
INV P
.C
. board
nor
mal?
Is there no fusing
of A
C30A fuse?
Is compressor
nor
mal?
Is smoothing
condenser nor
mal?
(1500
Ω
F, 400V)
Correct po
w
er line
.
Correct connection of wire connector
.
Replace fuse and A3-IPDU P
.C
. board.
Replace compressor
.
Chec
k capacity comingout/
e
xter
nal appear
ance
.
Replace A3-IPDU P
.C
. board.
Sub-code:
01:
Compressor 1, 02:
Compressor 2, 03:
Compressor 3
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