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Panasonic CS-A70KE - Component Malfunctions

Panasonic CS-A70KE
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Troubleshooting
Guide
electric
current
1.
Relationship
between
the
condition
of
the
air
conditioner
and
pressure
and
started.
Cooling
Mode
Heating
Mode
Condition
of
the
air
|
Electric
Electric
conditioner
Low
Pressure
|
High
Pressure
|
current
during
|
Low
Pressure
|
High
Pressure
|
current
during
operation
operation
Insufficient
refrigerant
\
uN
XN
\
\
\
(gas
leakage)
Clogged
capillary
tube
or
Strainer
“
“
“
“
“
“
Short
circuit
in
the
indoor
unit
i
‘
‘
~~
4
7
4
Heat
radiation
defi-
ciency
of
the
outdoor
7
7
7
‘“
\
N
unit
|
Inefficient
i
compression
7
“
“
7
“
\
e
Carry
out
the
measurements
of
pressure,
electric
current,
and
temperature
fifteen
minutes
after
an
operation
is
2.
Diagnosis
methods
of
a
malfunction
of
a
compressor
and
a
4-way
valve
Nature
of
fault
Symptom
Insufficient
compressing
of
a
compressor
4
Electric
current
during
operation
becomes
approximately
20%
lower
than
the
normal
value.
The
discharge
tube
of
the
compressor
becomes
abnormally
hot
(nor-
mally
70
to
90°C).
The
difference
between
high
pressure
and
low
pressure
becomes
almost
zero.
Electric
current
reaches
a
high
level
abnormally,
and
the
value
exceeds
the
|
limit
of
an
ammeter.
in
some
cases,
a
breaker
turns
off.
|
Locked
compressor
Inefficient
switches
of
the
4-way
vaive
The
compressor
is
a
humming
sound.
;
Electric
current
during
operation
becomes
approximately
80%
lower
than
the
normal
value.
The
temperature
difference
between
from
the
discharge
tube
to
the
4-way
valve
and
from
suction
tube
to
the
4-way
valve
becomes
almost
zero.
249

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