Mitsubishi Electric PUHY-HP120TNU-A, Service Handbook, Page: 305 / 324

[10 - 2 LED Status Indicators Table]
10 LED Status Indicators on th
e Outdoor Unit Circuit Board
8
- chapter 10 HWE18240_GB
E
rro
r hi
stor
y
No
.
SW
4 (
W
h
e
n
SW
6 -
10
is
s
e
t to OFF)
It
e
m
Display
Unit
(A,
B
)
*1
Rem
arks
123
4
567890
LD1
LD2
L
D3
LD4
LD5
LD
6
LD7
LD8
O
C
O
S
201
100
1001100
Outdoor unit
operation
s
tatus
Warm-
up m
ode
3
-minutes res
tar
t
m
ode
Com
p
res
s
or in
operation
Pr
el
im
inary error
E
rror
3-minutes res
tar
t
af
ter instant
a-
n
eous power
f
ail-
ure
P
reli
m
inary low
press
u
re error
AA
202
010
1001100
OC/OS i
d
ent
ifi
c
at
ion
O
C
/O
S
-1/
OS
-2
A
A
205
101
1001100
Outdoor unit
Operati
o
n
m
ode
P
e
rm
issible st
o
p
Standby
C
ooli
n
g
Hea
ting
A
A
208
000
0101100
Outdoor unit
control
m
o
de
S
to
p
T
her
mo OF
F
A
bnor
mal st
o
p
S
c
heduled con-
trol
In
itial start up
Defrost
Oil
balance
Low frequenc
y
oi
l reco
very
AA
209
1
00
0101100
War
m-up m
o
de
R
e
fr
iger
ant
re-
co
very
Continuous h
eat
-
ing 2
Continuous
heat-
ing 1
AA
211
1
10
0101100
Relay
output display
1
Lighting
COM
P
in
oper
a-
tion
72C
O
C
A
lw
ays li
t
A
A
212
0
01
0101100
Relay
output
display
2
Lighting
Top
2
1S4a
SV
10
C
H
11
SV
1a
SV
2
S
V1
1
AA
Bo
tt
o
m
21S
4
b
S
V5b
213
1
01
0101100
Relay
output
display
3
Lighting
Top
21S4c
SV
9
Lit
while powe
r t
o
the indoor
units
is
b
e
in
g
s
u
p
p
lie
d
AA
B
o
tt
om
S
V
14
SV
15
214
0
11
0101100
Relay
output
display
4
Top
O
ptional 20
0 V
ou
tp
ut
AA
Bo
tt
o
m
216
000
1101100
T
H4
-99
.9 t
o
999.9
A
A
T
he unit
is [
°C]
217
100
1101100
T
H3
-99
.9 t
o
999.9
A
A
218
010
1101100
T
H7
-99
.9 t
o
999.9
A
A
219
110
1101100
T
H6
-99
.9 t
o
999.9
A
A
220
001
1101100
T
H2
-99
.9 t
o
999.9
A
A
221
101
1101100
T
H5
-99
.9 t
o
999.9
A
A
227
110
0011100
T
HHS
1
-99
.9 t
o
999.9
A
A
T
he unit
is [
°C]
229
1
01
0011100
High-p
ress
ure
s
e
nsor
data
-99
.9
t
o
999.9
A
A
T
he unit
is [
k
g
f/cm
2
]
230
011
0011100
Low-
press
ure sens
or
da
ta
-99
.9 t
o
999.9
A
A
233
100
1011100
T
H15
-99
.9 t
o
999.9
A
A
T
he unit
is [
°C]
249
100
1111100
Q
j
000
0 to 99
99
B
B
250
010
1111100
Q
jc
000
0 to 99
99
B
B
251
110
1111100
Q
jh
000
0 to 99
99
B
B
252
001
1111100
Target Tc
-99
.9 t
o
999.9
B
The unit
is [
°C]
253
101
1
111100
Target Te
-99
.9 t
o
999.9
B
254
0
11
1111100
Tc
-99
.9 t
o
999.9
A
A
T
he unit
is [
°C]
255
1
11
1111100
Te
-99
.9 t
o
999.9
A
A
257
100
0000010
Total
frequenc
ie
s
(OC+OS
)
000
0 to 99
99
B
C
ont
ro
l
data [ Hz
]
258
010
0000010
T
otal
frequenc
y
of each unit
000
0
to
99
99
A
A
259
110
0000010
C
OM
P f
re
quency
000
0 to 99
99
A
A
262
011
0000010
C
OM
P operating
frequen
cy
000
0
to
99
99
A
A
The unit
is [
rps
]
264
000
1000010
A
ll AK
(
O
C
+
OS
)
000
0 to 99
99
B
265
100
1000010
A
K
000
0 to 99
99
A
A
*1
A: The
condition of
ei
ther
OC o
r OS
is
displaye
d
individually
. B
:
The c
ondit
ion
of the en
tire
refri
g
erant sy
stem
is
di
s
p
laye
d.