Toshiba MMK-AP0072H, Service Manual

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51
Chec
k code
Main
remote
contr
oller
P07 P12 P13 P15 P17 P19
Outdoor 7-segment displa
y
Chec
k code
Sub-code
P07
0
1
:
Compressor 1 side
0
2
:
Compressor 2 side
——
P13
—
P15
0
1
:
TS condition
02:
TD
condition
P17
—
P19
Detected outdoor unit No
.
AI-NET
central contr
ol
remote contr
oller
1C
11 47
AE AE
bb
8
Detected position
IPDU
I/F
Indoor
I/F I/F I/F I/F I/F
Check code
name
Heat sink o
v
erheat error
Indoor f
a
n
motor error Outdoor liquid bac
k detection
error Gas leak detection (TS1 condition) Gas leak detection (TD condition) Discharge temp TD2
error
4-w
a
y
v
alv
e
oper
ation error
Status
All stop
Corresponding unit only stops
.
All stop All stop All stop All stop All stop
Err
or detection condition
IGBT b
uilt-in temp sensor (TH) w
as o
v
erheated.
•
The v
alue of motor speed de
viated from
target v
alue w
as detected f
or cer
tain time
.
•
O
v
er-current protection oper
ated.
<In cooling> While the system is oper
ating in COOL mode
, a
high pressure v
alue w
as detected in f
ollo
w
e
r
unit in which compressor did not oper
ate
.
<In heating> While the system is oper
ating in HEA
T mode
,
outdoor PMV of which opening deg
ree w
a
s
100p or less f
or a cer
tain time
.
Suction temp e
xceeded the judgment standard
temp f
or 10 min
utes or more
.
<TS err
or judgment standar
d temperature>
In cooling oper
ation:
60
°C or higher
In heating oper
ation:
40
°C or higher
Discharge temper
ature
TD1 or
TD2 w
a
s
contin
uously 108
°C or higher f
or 10 min
utes
.
Discharge temper
ature (TD2) e
xceeded 115
°C.
When abnor
mal refr
iger
ating cycle data w
a
s
detected in heating
Chec
k item (position)
•
Chec
k po
w
er v
oltage
.
•
Chec
k outdoor f
an system error
.
•
Chec
k clogging of heat sink cooling duct.
•
Chec
k fixation betw
een IGBT and heat sink.
(Chec
k scre
wing and contact.)
•
Chec
k IPDU error
.(IGBT b
uilt-in temp sensor (TH) error)
•
Chec
k connection of f
an connector and wir
ing.
•
Chec
k f
an motor error
.
•
Chec
k indoor P
.C
. board error
.
•
Chec
k influence of outside air control.
•
Chec
k indoor type code (DN=10) and the capacity code (DN=11).
•
Chec
k full close oper
ation of outdoor PMV (1, 2).
•
Chec
k Pd and Ps sensor error
.
•
Chec
k clogging of SV2 circuit.
•
Chec
k clogging of balance pipe
.
•
Chec
k clogging of SV3B circuit.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k capillar
y clogging of oil retur
n circuit from oil separator
.
•
Chec
k leakage of chec
k v
alv
e of the main discharge pipe
.
•
Chec
k refr
iger
ant shor
tage
.
•
Chec
k full open of outdoor ser
vice v
alv
es (gas side
, liquid side).
•
Chec
k outdoor PMV clogging (PMV1, 2).
•
Chec
k char
acter
istics of
TS1 sensor resistance v
alue
.
•
Chec
k 4-w
a
y
v
alv
e error
.
•
Chec
k leakage of SV4 circuit.
•
Chec
k refr
iger
ant shor
tage
.
•
Chec
k outdoor PMV clogging (PMV1, 2).
•
Chec
k char
acter
istics of
TD1,
TD2 sensor resistance v
alue
.
•
Chec
k indoor air filter clogging.
•
Chec
k pipe clogging.
•
Chec
k SV4 circuit (V
alv
e leakage
, misinstallation)
•
Chec
k full opening of outdoor ser
vice v
alv
es
(gas side
, liquid side).
•
Chec
k clogging of outdoor PMV (PMV1, 2).
•
Chec
k char
acter
istics of
TD2 sensor resistance v
alue
.
•
Chec
k 4-w
a
y
v
alv
e error
.
•
Chec
k leakage of SV42 circuit.
•
Chec
k SV4 circuit.
(Miscab
ling and misinstallation of SV41 and SV42)
•
Error of 4-w
a
y
v
alv
e error
•
Chec
k coil error and connector connection of 4-w
a
y v
alv
e
.
•
Chec
k char
acter
istics of
TS1/TE1 sensor resistance v
alue
.
•
Chec
k char
acter
istics of Pd, Ps pressure sensor output v
oltage
.
•
Chec
k misconnection of
TE1 and
TL sensors
.
FILE NO. SVM-05052