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19
Common
Problems
and
Solutions
Common
Issues
Before
calling
for
service,
please
review
the
following
list
of
common
problems
and
solutions.
The
air
conditioner
is
operating
normally
when:
?
You
hear
a
pinging
noise.
This
is
caused
by
water
being
picked
up
by
the
condenser
on
rainy
days
or
in
highly
humid
conditions.
This
feature
is
designed
to
help
remove
moisture
in
the
air
and
improve
cooling
efficiency.
?
You
hear
the
thermostat
click.
This
is
caused
by
the
compressor
cycle
starting
and
stopping.
?
You
see
water
dripping
from
the
rear
of
the
unit.
Water
may
be
collected
in
the
base
pan
in
highly
humid
conditions
or
on
rainy
days.
This
water
overflows
and
drips
from
the
rear
of
the
unit.
?
You
hear
the fan
running
while
the
compressor
is
silent.
This
is
a
normal
operational
feature.
The
air
conditioner
may
be
operating
abnormally
when:
Problem
Possible
Causes
What
To
Do
The
air
conditioner
is
unplugged
or
not
plugged
in
completely
The
fuse
is
blown/circuit
breaker
is
triggered
Power
failure.
Air
flow
is
restricted
The
THERMOSTAT
may
not
be
set
cool
enough
The
air
filter is
dirty.
The
air
conditioner
was
just
turned
on.
Cold
air
is
escaping.
Cooling
coils
are
iced
up
The
cooling
coils
are
iced
over.
?
Make
sure
the
plug
is
completely
plugged
into
the
outlet
?
Check
the
fuse/circuit
breaker
box
and
replace
the
fuse
or
reset
the
breaker
?
In
the
event
of
a
power
failure,
set
the
power
control
to
OFF.
When
the
power
is
restored,
wait
3
minutes
to
restart
the
air
conditioner
to
prevent
the
compressor
from
overloading
?
Make
sure
there
are
no
curtains,
blinds,
furniture
or
other
obstacles
in
front
of
the
air
conditioner
?
Turn
the
knob
to
a
higher
setting.
The
highest
setting
provides
maximum
cooling
?
Clean
the
filter
at
least
every
2
weeks.
Refer
to
the
"Care
and
Maintenance"
section
(p.11)
of
the
manual.
?
After
the
air
conditioner
is
turned
on,
you
need
to
give
the
air
conditioner
some
time
to
cool
the
room.
?
Check
for
open
furnace
floor
resisters
and
cold
air
returns.
?
CLOSE
the
air
conditioner
vent
?
See
Ice
appears
on
the
air
conditioner
below
?
Ice
may
block
the
air
flow
and
obstruct
the
air
conditioner
from
properly
cooling
the
room.
Set
the
fan
at
MED
or
HIGH
while
setting
the
thermostat
at
1
or
2
until
the
ice
melts.
The
air
conditioner
does
not
operate
at
all
Air
conditioner
does
not
cool
Ice
appears
on
the
air
conditioner.
ENGLISH
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