Toshiba MD-VNK802HEXE, Service Manual

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96
Ca
us
e
1.
Fou
r-
w
ay val
ve er
ro
r
2.
TS1
/ TE1
se
nsor
e
rro
r
3.
Pd
/ P
s
sen
sor
e
rr
o
r
4.
M
isco
nn
ectio
n
o
f th
e TE
an
d TL
sen
sor
s
Che
ck cod
e n
a
me
Four-
w
a
y
valve rever
s
e
er
ror
Ch
eck co
de
[P
1
9
]
F
o
u
r-
w
ay
va
lv
e er
ro
r
No
Yes
Is
the
4
-w
a
y va
lv
e
co
il
c
onne
cto
r
con
nec
ted?
Chec
k the
c
onn
ecto
r
co
nnec
tio
n
(4
-w
a
y
v
a
lv
e coi
l: CN317)
No
Yes
A
re
Pd
/ Ps
s
ens
or
outp
ut v
o
lta
ge
c
har
ac
ter
is
tic
s
co
rre
c
t?
Ar
e the
T
S
1
/ T
E
1 /
T
L
se
nso
r
re
si
st
a
n
t c
h
ar
ac
te
ri
s
tic
s
co
rre
c
t?
Ar
e the
T
S
1
/ T
E
1 /
T
L
se
nso
r
co
nnec
tor
s
co
nnec
ted
pr
op
e
rl
y
?
No
Yes
No
Yes
Rese
t the
power
an
d the
n
sta
rt
t
he he
ati
ng tes
t r
u
n
*
S
ee
"9-
9.
Sen
sor
c
har
ac
ter
is
tic
s
/ O
u
tdoo
r
unit
temp
er
atur
e s
ens
or
ch
ar
act
er
is
tic
s
"
Yes
No
Does
the
4-
way
va
lv
e
w
o
rk
?
A
u
xi
liar
y c
o
d
e
: Dete
cte
d out
door
un
it No
.
Chec
k th
e fou
r-
way
v
a
lv
e
No
Ye
s
Does
the
refrig
er
a
n
t run
fr
o
m
th
e 4-
way
v
a
lv
e di
sc
har
ge
to
su
ct
io
n
?
(*
1
)
S
e
ns
or
er
ro
r
S
e
ns
or
er
ro
r
Cor
re
ct t
he c
onne
cto
r
co
nnec
tio
n
TS1 s
ens
or
: CN5
05
TE1 s
ens
or
: CN5
20
T
L
se
ns
or
: CN523
If no er
ro
r oc
cu
rr
ed in
te
st r
un,
re
sta
rt
oper
ati
on
(*
1)
C
hec
k th
e T
S
1
/ T
E
1
tempe
ra
tur
e
of t
he r
unn
ing
outdo
or
uni
t.
S
e
t [
S
W
0
1 / 0
2
/ 03
] of I
/F
to [1
/ 7 / 2
]
ĺ
T
S
1 s
e
n
s
or
te
m
p
er
at
u
re
S
e
t [
S
W
0
1 / 0
2
/ 03
] of I
/F
to [1
/ 8 / 2
]
ĺ
T
E
1 s
e
n
s
or
te
m
p
er
at
u
re
<
A
ppr
ox
imat
e ju
dgme
nt gu
ide
>
T
E
1
s
ens
or
:
E
x
c
ept su
mmer
(
O
ut
door
temp
er
a
tur
e: 20 °C or
lowe
r)
O
K
i
f TE
3
0
°C
T
S
1
s
ens
or
:
E
x
c
ept su
mmer
(
O
ut
door
temp
er
a
tur
e: 20 °C or
lowe
r)
O
K
i
f TS
5
0
°C
Ca
use
1.
Pd
s
e
n
s
or
e
rr
o
r
2
.
S
e
rv
ice va
lve clo
s
ed
3
.
Indo
or
/ Outd
oo
r fan
er
ro
r
4
.
Indo
or
/ Outd
oo
r PM
V
cl
o
ggi
n
g
5
.
He
at e
xcha
ng
er
clog
ging
6.
SV
2
ci
rcui
t
e
rro
r
7.
SV
4
ci
rcui
t
e
rro
r
8.
SV
5
ci
rcui
t
e
rro
r
9
.
O
u
td
oor
I
/F bo
ar
d
er
ro
r
1
0
. Di
sch
arge
ch
eck va
lv
e e
rror
1
1
. Refr
ige
ra
n
t
over
ch
ar
ging
Ch
eck co
de
na
me
Hig
h-pre
s
sur
e prot
ecti
on activat
ion
Che
ck cod
e
[P
20
]
Is
the
fan p
rop
er
?
No
Ye
s
Is
the
ser
v
ic
e
v
a
lv
e
opene
d ful
ly
?
Ar
e th
e
hig
h pr
es
sur
e
sen
sor
ch
a
ra
c
te
ri
st
ics
c
o
rre
ct?
Do
es
the
out
door
fan
of c
ool
ing
wor
k
pr
ope
rl
y?
No
Ye
s
No
Ye
s
No No
Ye
s
Is t
he ou
tdoor
PMV
r
unni
ng p
ro
per
ly
?
1. Conne
cto
r
c
onn
ect
ion
2.
P
ip
e
3. C
o
il
4. V
a
lv
e
5.
Ou
tdoor
P
C
boa
rd
A
re th
e
re
an
y ob
sta
cl
es f
o
r he
at
exch
ange of
t
he out
door
uni
t?
1.
Hea
t
excha
nger
cl
ogg
ing
2. Shor
t ci
rcu
it
(1
)
P
re
ss
ur
e by
pr
es
su
re
gaug
e (
C
hec
k j
o
in
t)
(2
)
P
re
ss
ur
e di
sp
lay
in
7-
se
gment
(3
)
O
utpu
t v
o
lta
ge of
the I/
F
boar
d
If
(1
) is
d
iffe
re
nt from (2) an
d (3), an e
rror
ma
y ha
ve
occ
ur
red on
the pr
es
su
re
sen
so
r.
If
(2
) an
d (
3
) ar
e di
ffer
ent
, ch
eck
th
e
in
ter
fac
e
bo
ar
d.
*
C
o
nnec
tor
P
M
V1:
CN300
, PM
V2: C
N
301,
PMV
4: CN3
03
Res
et th
e powe
r,
and t
hen s
tar
t th
e tes
t r
un f
o
r
the s
eas
on.
Ye
s
No Ye
s
Is
the
SV
2 by
pas
s
ci
rc
ui
t
c
o
rre
ct?
Is
the
SV
4 c
ir
c
u
it
co
rre
c
t?
(B
)
Co
oli
ng
ĺ
G
o
to (B)
He
atin
g
ĺ
G
o
to
(
C
)
O
p
e
n
the
se
rv
ic
e v
a
lv
e f
u
lly
Cool
in
g
Ye
s
No
No
Ye
s
No
Ye
s
Doe
s t
he
dis
ch
ar
ge c
hec
k
val
ve
wor
k pr
oper
ly
?
Re
fr
iger
an
t ov
er
cha
rg
e / Cl
oggi
ng /
B
ro
k
e
n
pi
pe / O
v
er
loa
d
Ch
ec
k th
e c
ompo
nent
E
rro
r
ĺ
Repl
ace
F
ix t
he er
ro
r
F
ix t
he er
ro
r
Co
nnec
tor
c
onne
cti
on,
fan IP
DU,
fan mo
tor
, wir
in
g
Re
pai
r t
he ou
tdoor
P
M
V
Re
mov
e th
e obs
tac
le
s
F
ix t
he S
V
2 b
y
pa
ss
c
ir
c
u
it
Co
il er
ro
r,
Clog
ging
, Br
ok
en
pipe
,
et
c
.
F
ix t
he S
V
4 c
ir
c
uit
Co
il er
ro
r,
Clog
ging
, Br
ok
en
pipe
,
et
c
.
F
ix o
r r
e
p
lac
e th
e c
hec
k v
a
lv
e
in
the di
sc
har
ge
ar
ea