– 52 –
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O
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o
l
B
Judgment and action
Check
code
Block
Check
code
Cause of operation
Air
conditioner
status
Remarks
Other
s
(incl
u
ding
compre
ss
or)
Ret
u
rn
s
eri
a
l
s
ign
a
l
h
as
b
een
s
ent when
oper
a
tion
s
t
a
rted,
bu
t
it i
s
not
s
ent from
h
a
lfw
a
y.
1) Compre
ss
or
thermo. oper
a
tion
G
as
s
hort
a
ge
G
as
le
a
k
2) In
s
t
a
nt
a
neo
us
power f
a
il
u
re
Oper
a
tion
contin
u
e
s
Fl
as
he
s
when
tro
ub
le i
s
detected on
ret
u
rn
s
eri
a
l
s
ign
a
l,
a
nd
norm
a
l
s
t
a
t
us
when
s
ign
a
l i
s
re
s
et.
1. Repe
a
t St
a
rt
a
nd Stop with interv
a
l of
a
pprox. 10 to 40 min
u
te
s
. (Code i
s
not di
s
pl
a
yed d
u
ring oper
a
tion.)
S
u
pply g
as
.
(Check
a
l
s
o g
as
le
a
k).
2. Unit oper
a
te
s
norm
a
lly d
u
ring check.
If ret
u
rn
s
eri
a
l
s
ign
a
l doe
s
not
s
top
b
etween indoor termin
a
l
b
lock 2
a
nd
3
, repl
a
ce inverter P.C.
b
o
a
rd.
If
s
ign
a
l
s
top
s
b
etween indoor
termin
a
l
b
lock 2
a
nd
3
, repl
a
ce indoor
P.C.
b
o
a
rd.
Compre
ss
or doe
s
not
rot
a
te.
(C
u
rrent protective
circ
u
it doe
s
not
oper
a
te when
a
s
pecified time p
ass
ed
a
fter compre
ss
or h
a
d
b
een
a
ctiv
a
ted.)
All off
Di
s
pl
a
yed when
tro
ub
le i
s
detected.
1. Tro
ub
le on compre
ss
or
2. Tro
ub
le on wiring of compre
ss
or
(Mi
ss
ed ph
as
e)
Di
s
ch
a
rge temp.
exceeded 117°C
All off
Di
s
pl
a
yed when
tro
ub
le i
s
detected.
1. Check di
s
ch
a
ge temp.
s
en
s
or (TD).
2. G
as
le
a
k
a
ge
3
. Tro
ub
le on P.M.V.
Bre
a
k down of
compre
ss
or
All off
Di
s
pl
a
yed when
tro
ub
le i
s
detected.
1. Check power volt
a
ge.
(220–2
3
0–240 V +10
%
)
2. Overlo
a
d oper
a
tion of refriger
a
tion
cycle
Check in
s
t
a
ll
a
tion condition
(Short-circ
u
it of o
u
tdoor diff
us
er).
