Mitsubishi Electric PURY-P120Y(T)HMU-A, Service Handbook

Page: 355 / 387

[
X
LED monitor display on the outdoor unit board ]
- 346 - HWE0803A
Error history
No
.
SW1
Ite
m
Disp
la
y
Unit
(A
, B)
*1
Re
m
a
rk
s
12
34
567
89
0
L
D1
LD
2
L
D3
LD4
L
D
5
L
D6
L
D
7
L
D
8
O
C
OS
20
1
1
0
0
1
001
10
0
Ou
td
oo
r un
it
op
er
at
io
n
s
tat
us
B
C
op
er
a-
ti
on
si
gn
al
3-
min
ute
s
re
st
ar
t mo
de
Co
mpr
es
so
r
in
op
er
at
io
n
Prelimi
nary
er
ro
r
E
rro
r
3-
min
ut
es
re
sta
rt
a
fte
r
in
s
tant
a
-
n
eou
s p
o
we
r
fa
ilu
re
Pr
el
imin
ar
y
lo
w pr
es
-
su
re
e
rr
o
r
AA
20
2
0
1
0
1
001
10
0
O
C/
OS
i
d
e
n
ti
fi
c
a
ti
o
n
OC
/O
S
A
A
20
3
1
1
0
1
001
10
0
B
C
op
er
at
io
n
mo
d
e
C
o
ol
ing
-o
n
ly
ON
C
o
ol
in
g-
on
ly
OFF
H
e
a
ti
ng
-o
nl
y
ON
Hea
ti
n
g
-onl
y
OF
F
Mixed-mode
ON
Mixed-mode
OFF
Fa
n
S
top
A
A
20
4
0
0
1
1
001
10
0
20
5
1
0
1
1
001
10
0
Ou
td
oo
r un
it
Op
er
at
io
n
mode
Pe
rmi
s
s
ib
le
st
op
St
an
db
y
C
o
o
ling
Coo
lin
g
-
main
Hea
ti
n
g
Hea
ti
n
g
-
main
AA
20
6
0
1
1
1
001
10
0
20
7
1
1
1
1
001
10
0
20
8
0
0
0
0
101
10
0
Ou
td
oo
r un
it
co
nt
ro
l
mo
de
S
to
p
Th
er
mo OF
F
Ab
no
rma
l
st
op
Sc
he
du
le
d
co
nt
ro
l
Ini
tia
l s
ta
rt
up
Def
ro
st
Oi
l ba
la
nc
e
Lo
w fr
e-
qu
en
cy
o
il
re
co
v
e
ry
AA
20
9
1
0
0
0
101
10
0
R
e
fri
ge
ra
nt
re
co
v
e
ry
AA
21
0
0
1
0
0
101
10
0
21
1
1
1
0
0
101
10
0
Re
la
y ou
tput
di
sp
la
y 1
Li
g
h
ti
ng
Comp
in
o
p
-
er
at
io
n
72
C
O
C
A
lw
ay
s lit
A
A
21
2
0
0
1
0
101
10
0
Re
la
y ou
t-
p
u
t di
sp
la
y
2 Li
g
h
ti
ng
T
o
p
2
1S4
a
CH11
S
V1a
SV2
AA
Bo
tto
m
SV
5
b
21
3
1
0
1
0
101
10
0
Re
la
y ou
t-
p
u
t di
sp
la
y
3 Li
g
h
ti
ng
To
p
SV
4a
SV4
b
S
V
4
c
S
V
5
c
S
V
4
d
SV9
Lit while
p
o
we
r to
the
in
do
or
u
n
it
s
is
be
in
g
s
u
p-
pl
ie
d
AA
Bo
tto
m
21
4
0
1
1
0
101
10
0
21
5
1
1
1
0
101
10
0
*1
A:
The
c
o
n
d
it
io
n of
ei
ther
OC or
OS is
di
sp
la
ye
d in
di
vi
d
ual
ly
. B:
The
c
o
n
d
it
io
n of
th
e en
ti
re
r
e
fr
ig
e
ra
n
t sy
st
em i
s
di
sp
la
y
ed
.