Toshiba MMY-MAP0804FT7(Z), Service Manual, Page: 212 / 333

– 212 –
Ye
s
Ye
s
Ye
s
No
Chec
k the clogging of SV3E v
alv
e
.
No
No
No error No error
Error
[H16]
Error
Chec
k code
Cause
Chec
k code name
TK4 temper
ature detectiv
e circuit
error (Sub-code:
04)
1.
Coming-off of
TK4 sensor
, mis
wir
ing,
char
acter
istics error of resistance v
alue
2.
Malfunction of SV3E v
alv
e circuit (Chec
k v
alv
e
,
capillar
y clogging, str
ainer clogging)
3.
Refr
iger
ant stagnation in the compressor shell
Is not
TK4 sensor
detached?
Is there
no mis
wir
ing or
misinstallation on
TD1/TD2/TD3/TK1/TK2/
TK3/TK4/TK5
sensors?
Are
char
acter
istics of
TK4 sensor resistance
v
alue nor
mal?
Chec
k the clogging
of SV3E v
alv
e
.
(Note 1)
Correct installation of sensor
.r.
Sensor error
→
replace
Replace clogging par
t (capillar
y).
Replace SV3E v
alv
e
.
Chec
k I/F P
.C
. board
Correct mis
wir
ing/misinstallation.
TD1:
CN502, white
,
TD2:
CN503, pink
TD3:
CN504, b
lue
TK1:
CN531, b
lac
k,
TK2:
CN532, g
reen
TK3:
CN533, pink,
TK4:
CN534, y
ello
w
TK5:
CN535, red
Star
t a test oper
ation in COOL or HEA
T mode
.
Displa
y
TK4 sensor temper
ature on 7-segment displa
y with
SW01/02/03=[1] [15] [2]. Chec
k
TK4 sensor temp appro
x.
10 min
utes after compressor has oper
ated.
If lo
w temper
ature contin
ues (appro
ximately outside temp) or temper
ature has
little change
, clogging of the par
allel capillar
y tube is considered.
(Note 1) Ref
er to the ar
ticle of the chec
k code [H07].
After resetting the po
w
er
*See "Outdoor unit temper
ature sensor
char
acter
istics" on "8-
9
. Sensor Char
acter
istics".
↓ ↓
(SV3C)
SV
(TK4)
Capillar
y
tube Strainer
No Ye
s
Ye
s
Ye
s
No
Error
No error
No
[H16]
Chec
k code
Cause
Chec
k code name
TK5 temper
ature detectiv
e circuit
error (Sub-code:
05)
1.
Coming-off of
TK5 sensor
, mis
wir
ing,
char
acter
istics error of resistance v
alue
2.
Malfunction or clogging of SV3E v
alv
e
3.
Oil-equalization circuit error (Capillar
y or
str
ainer clogging)
4.
Refr
iger
ant stagnation in the compressor shell
Is not
TK5 sensor
detached?
Correct installation of sensor
.
Sensor error
→
replace
Chec
k I/F P
.C
. board
Replace SV3E v
alv
e
.
Is there
no mis
wir
ing or
misinstallation on
TK1/TK2/TK3/TK4/TK5,
TD1/TD2/TD3
sensors?
Are
char
acter
istics of
TK5 sensor resistance
v
alue nor
mal?
Chec
k the
clogging of SV3E v
alv
e
.
(Note 1)
Correct mis
wir
ing/misinstallation.
TK1:
CN531, b
lac
k,
TK2:
CN532, g
reen
TK3:
CN533, pink,
TK4:
CN534, y
ello
w
TK5:
CN535, red
TD1:
CN502 white
,
TD2:
CN503 pink
TD3:
CN504 b
lue
(Note 1) Ref
er to the ar
ticle of the chec
k code [H07].
AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk