Toshiba MMY-MAP0804FT7(Z), Service Manual, Page: 211 / 333

– 211 –
Error
No
Ye
s
Ye
s
Ye
s
No
No
No error No error
Error
[H16]
Chec
k code
Cause
Chec
k code name
Oil le
v
el detection circuit error
TK2 temper
ature detectiv
e circuit
error (Sub-code:
02)
1.
Coming-off of
TK2 sensor
, mis
wir
ing,
char
acter
istics error of resistance v
alue
2.
Oil-equalization circuit error (Chec
k v
alv
e
,
capillar
y clogging, str
ainer clogging)
3.
Refr
iger
ant stagnation in the compressor shell
Is not
TK2 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
TK2
sensor resistance
value nor
mal?
Chec
k the clogging
of SV3E v
alv
e
.
(Note 1)
Correct installation of sensor
.
Sensor error Replace clogging par
t.
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
TK2 sensor temper
ature on 7-segment displa
y with
SW01/02/03=[1] [13] [2]. Chec
k
TK2 sensor temp appro
x.
10 min
utes after compressor 2 has oper
ated.
If lo
w temper
ature contin
ues (appro
ximately outside temp) or temper
ature has
little change
, a clogging of str
ainer of oil-equalization circuit, clogging of
capillar
y tube
, or malfunction of chec
k v
alv
e 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".
↓ ↓
(TK2)
Capillar
y
tube
Str
ainer
Comp
. 2
(in
ver
ter)
Chec
k
va
lve
No No
Ye
s
No
Ye
s
No error No error
Error
Error
[H16]
Chec
k code
Cause
Chec
k code name
Oil le
v
el detection circuit error
TK3 temper
ature detectiv
e circuit
error (Sub-code:
03)
1.
Coming-off of
TK3 sensor
, mis
wir
ing,
char
acter
istics error of resistance v
alue
2.
Oil-equalization circuit error (Chec
k v
alv
e
,
capillar
y clogging, str
ainer clogging)
3.
Refr
iger
ant stagnation in the compressor shell
Is not
TK3 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
TK3 sensor resistance
v
alue nor
mal?
Chec
k the clogging
of SV3E v
alv
e
.
(Note 1)
Correct installation of sensor
.
Sensor error
→
replace
Replace clogging par
t.
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
After resetting the po
w
er
Star
t a test oper
ation in COOL or HEA
T mode
.
Displa
y
TK3 sensor temper
ature on 7-segment displa
y with
SW01/02/03=[1] [14] [2]. Chec
k
TK3 sensor temp appro
x.
10 min
utes after compressor 3 has oper
ated.
If lo
w temper
ature contin
ues (appro
ximately outside temp) or temper
ature has
little change
, a clogging of str
ainer of oil-equalization circuit, clogging of
capillar
y tube
, or malfunction of chec
k v
alv
e is considered.
(Note 1) Ref
er to the ar
ticle of the chec
k code [H07].
*See "Outdoor unit temper
ature sensor
char
acter
istics" on "8-
9
. Sensor Char
acter
istics".
↓ ↓
(TK2) Capillar
y
tube
Str
ainer
Comp
. 3
(in
ver
ter)
Chec
k
v
alv
e
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