Toshiba MMK-AP0072H, Service Manual

Page: 46 / 125

46
Chec
k code
Main
remote
contr
oller
F07 F08 F10 F12 F13 F15 F16 F23 F24 F29 F31
H01
Outdoor 7-segment displa
y
Chec
k code
Sub-code
F07
—
F08
—
——
F12
—
F13
0
1
:
Compressor 1 side
0
2
:
Compressor 2 side
F15
—
F16
—
F23
—
F24
—
——
F31
—
H01
0
1
:
Compressor 1 side
0
2
:
Compressor 2 side
AI-NET
central contr
ol
remote contr
oller
18 1b
OC
A2
43 18 43 43 43 12
1C 1F
Detected position
I/F I/F
Indoor
I/F
IPDU
I/F I/F I/F I/F
Indoor
I/F
IPDU
Chec
k code name
TL sensor error T
O sensor error
Indoor
T
A
sensor error
TS1 sensor error TH sensor error Outdoor temp sensor miscab
ling (TE1,
TL)
Outdoor pressure sensor miscab
ling (Pd, Ps)
Ps sensor error Pd sensor error Indoor other error Outdoor EEPR
OM error
Compressor breakdo
w
n
Status
All stop All stop
Corresponding unit only stops
.
All stop All stop All stop All stop All stop All stop
Corresponding unit only stops
.
All stop (
∗
1)
All stop
Err
or detection condition
•
Resistance v
alue of sensor is
infinite or z
ero (Open/Shor
t).
•
Resistance v
alue of sensor is
infinite or z
ero (Open/Shor
t).
•
Resistance v
alue of sensor is
infinite or z
ero (Open/Shor
t).
•
Resistance v
alue of sensor is
infinite or z
ero (Open/Shor
t).
•
Resistance v
alue of sensor is
infinite or z
ero (Open/Shor
t).
Dur
ing oper
ation of compressor in
HEA
T mode
, the
TE1 detection
temp w
as higher than that of
T
L
b
y the specified v
alue continu
e
d
for 3 min
utes or more
.
High-pressure Pd sensor and lo
w
-
pressure Ps sensor w
ere
e
xchanged, or output v
oltages of
both sensors are z
ero
.
Output v
oltage of Ps sensor w
a
s
z
ero
.
Output v
oltage of Pd sensor w
a
s
z
ero
. (Sensor Open)
Pd > 4.15MP
a dur
ing stop of
compressor Indoor P
.C
. board did not oper
ate
nor
mally
.
Outdoor P
.C
. board (I/F) did not
oper
ate nor
mally
.
In
v
e
rter current detection circuit
detected o
v
er-current and
stopped.
Chec
k item (position)
•
Chec
k connection of
TL sensor connector
.
•
Chec
k char
acter
istics of
TL sensor resistance v
alue
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k connection of
T
O sensor connector
.
•
Chec
k char
acter
istics of
T
O sensor resistance v
alue
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k connection/wir
ing of
T
A sensor connector
.
•
Chec
k char
acter
istics of
T
A sensor resistance v
alue
.
•
Chec
k indoor P
.C
. board error
.
•
Chec
k connection of
TS1 sensor connector
.
•
Chec
k char
acter
istics of
TS1 sensor resistance v
alue
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
IGBT b
uilt-in temp sensor error
→
Exchange IPDU P
.C
. board.
•
Chec
k installation of
TE1 sensor and
TL sensor
.
•
Chec
k char
acter
istics of
TE1 and
TL sensor resistance
v
alue
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k connection of high-pressure Pd sensor connector
.
•
Chec
k connection of lo
w-pressure Ps sensor connector
.
•
Chec
k pressure sensors Pd and Ps error
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k compression error of compressor
.
•
Misconnection of Ps sensor and Pd sensor connectors
•
Chec
k connection of Ps sensor connector
.
•
Chec
k Ps sensor error
.
•
Chec
k compression error of compressor
.
•
Chec
k 4-w
a
y
v
alv
e error
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k SV4 circuit error
.
•
Chec
k connection of Pd sensor connector
.
•
Chec
k Pd sensor error
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k indoor P
.C
. board error (EEPR
OM error).
•
Chec
k po
w
er v
oltage
.
•
Chec
k po
w
er noise
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k po
w
er v
oltage
.
(A
C220
–
240V ± 10%).
•
Chec
k compressor error
.
•
Chec
k cause of abnor
mal o
v
er
load oper
ation.
•
Chec
k outdoor P
.C
. board (IPDU) error
.
(
∗∗∗∗∗
1)
All stop only in case of the header unit
The f
ollo
w
er unit contin
ues operation.
FILE NO. SVM-05052