Sharp AE-XM24HR, Service Manual

Page: 26 / 50

3 – 9
1.
When
all
rooms
are
not
c
ooled
Yes
Yes
Yes
No No No
How
to
distinguish
the
defective
parts
Are
the
timer
lamps
of
the
in-
door
units
in
all
rooms
flashing
?
Is
the
compressor
of
the
outdoor
unit
operating
?
Are
the
timer
lamps
of
the
indoor
units
in
all
rooms
flashing
?
Check
the
failure
symptom
with
the
failure
d
iagnosis
mode.
The
cooling
cycle
is
abnormal.
Check
the
pressure.
Check
that
the
power
between
the
terminal
board
"
N
"
and
"
L
"
of
the
indoor
unit
is
AC
230V,
50Hz. Repair
the
w
iring
between
the
units. Press
the
OPERATION
button
to
start
o
perating
the
air-condi-
tioner.
(One-room
operation
ON)
(Set
the
cooling
mode
to
18
͠㧕
(Check
the
failure
w
ith
the
outdoor
unit.)
TO
A