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WHAT
IS WRONG WITH YOUR
REFRIGERATOR?
Warning! To avoid personal injury or even
death, always disconnect your appliance
from its power source--that is, unplug it
or break the connection at the circuit
breaker or fuse box--before you do any
troubleshooting or repair work on your
appliance. Also, because some components
may have sharp edges, use caution while
working on your appliance.
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It's
stopped
completely
It's
not cool
Cooling
is poor
It's
noisy
It
leaks
The
freezer compartment is icing
up
The
food in the refrigerator
freezes
There's
water dripping inside the
refrigerator
The
refrigerator never cycles
off
The
ice maker has a
problem
There's
an ice- or water-dispensing
problem
More
about
refrigerators
Refrigerator
replacement
parts
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First,
check to see if the light comes on or if
there is any fan, motor, or other sound
coming from the appliance? If so, the
refrigerator isn't really completely
stopped--go to the specific problem you
are having. If not, try adjusting the
thermostat to a colder setting. If that
doesn't work, read on.
Second, check to see if there is power
getting to the refrigerator. To do that,
plug a lamp or other device into the same
outlet the refrigerator is plugged into.
If there's no power, check the fuses or
circuit breakers. If the fuses or breakers
aren't the problem, contact a qualified
electrician to restore power to the
outlet.
If there is power to the appliance but it
still seems to be stopped, there may be a
problem in one or more of these:
- Wiring
- Thermostat
- Defrost
timer
- Compressor
- Overload
and/or relay
Unfortunately,
we can't describe all of the possible
problems and repair solutions here. If you
are unable to troubleshoot the problem
from here, you may need to contact a
qualified appliance repair technician.
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If the
refrigerator isn't cool, you need to
answer some questions, then see if the
compressor is running.
First, answer these questions:
- Is the
refrigerator completely dead? If so,
see It's stopped
completely.
- Is the
thermostat knob turned to the proper
setting? If not, reset it.
Next, see
if the compressor motor is running
The compressor is a football-sized case
with no apparent moving parts. It's on the
outside of the refrigerator at the back
near the bottom. If it is humming or
making a continuous noise and your
refrigerator is still not cooling, there
may be a more serious problem with one or
more of several different components, we
recommend contacting a qualified appliance
repair technician for further help.
If the compressor is not running but you
do have power to the refrigerator, there
may be a problem with one or more of
these:
- The
compressor
- The
Thermostat
- The
overload, relay, or capacitor
- The
defrost timer
- The
condensor fan motor
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For an
overall understanding of how refrigerators
should work, read about refrigerators in
the How Things Work section of our
website. A refrigerator or freezer that is
cooling, but cooling poorly, may have a
problem in one of several areas:
Evaporator
coils
Condenser
Poor cooling is often the result of a
heavy frost build-up on the evaporator
coils or a condenser that is clogged with
dust, lint, and dirt.
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Poor
cooling is often the result of a heavy
frost build-up on the evaporator coils.
You can't see these coils without removing
a panel on the inside of your freezer. A
sure sign that there is a build-up is the
presence of any frost or ice build-up on
the inside walls, floor, or ceiling of the
freezer. Such a frost build-up usually
indicates a problem in the self-defrosting
system or damaged door gaskets.
The refrigerator is supposed to
self-defrost approximately four times in
every 24 hour period. If one of the
components in the self-defrosting system
fails, the refrigerator continues to try
to cool. Eventually, though, so much frost
builds up on the evaporator coils that the
circulating fan can't draw air over the
coils. There may still be a small amount
of cooling because the coils are icy, but
with no air flow over the coils, cooling
in the refrigerator compartment is quite
limited.
Here's an inexpensive, though
inconvenient, way to determine if the
problem is with the self-defrosting
system. Remove all of the perishable food
from the refrigerator and freezer, turn
the thermostat in the refrigerator to Off,
and leave the doors open for 24 to 48
hours. (Be sure to have several towels
ready in case the melting frost and ice
causes the drip pan to overflow). This
allows the refrigerator to defrost
"manually." When the frost and ice
build-up has completely melted away, turn
the thermostat back to a normal setting.
If the refrigerator then cools properly,
it indicates a problem with one of three
components in the self-defrosting
system:
- The
defrost timer
- The
defrost thermostat (also called the
bi-metal switch)
- The
defrost heater
If it
still does not cool properly, there may be
a problem with the refrigerant level or
the compressor. You may need to consult
with a qualified appliance repair
technician to further diagnose the
problem
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Self-defrosting
refrigerators all have a set of coils and
a cooling fan, usually under the
refrigerator, that need to be cleaned
regularly. If these coils get coated with
dust, dirt or lint, the refrigerator may
not cool properly. The coils may appear to
be a thin, black, wide radiator-like
device behind the lower kick-panel. To
clean them, disconnect the refrigerator
from the power source, use a refrigerator
condenser brush (see the Appliance
Accessories section) and your vacuum
cleaner to clean the coils of any lint,
pet hair, etc. You may not be able to get
to all of the condenser from the front, it
may be necessary to clean the remainder of
the condenser from the rear of the
refrigerator.
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Noise can
come from these areas:
The
inside of the
freezer
The
outside back of the
refrigerator
The
bottom of the
refrigerator
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The
inside of the freezer
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Self-defrosting
refrigerators use a circulating fan to
move the air through the freezer and
refrigerator compartments. This fan runs
whenever the unit is cooling. The fan is
located in the freezer, as follows:
- If the
freezer is on top, the fan is on the
back wall, near the top or bottom, in
the center of the freezer.
- If the
freezer is on the bottom, the fan is on
the back wall, near the top of the
freezer.
- If the
freezer is on the left, the fan is on
the back wall, halfway up or near the
top.
Over time,
the fan may become noisy--usually making a
chirping or squealing sound, though it may
make a loud groaning noise instead.
To find out if the fan is causing the
noise, just open the freezer door and push
in any fan/light switches. If the noise is
louder when the door is open, the
evaporator fan motor is the cause. You
can't lubricate or repair this motor. You
must replace it.
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The
outside back of the refrigerator
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There are
three components on the outside back of
the refrigerator that may become noisy:
the compressor, the condenser fan motor
(if self-defrosting), or the defrost timer
(if self-defrosting).
- The
compressor is a football-sized case
with no apparent moving parts. You can
see it on the outside of the
refrigerator at the back near the
bottom. It is usually black and has
black or copper-colored tubes and
various colored wires attached to it.
If the compressor is the device making
noise, there is probably no repair that
will reduce the noise. You will have to
replace it--which can be quite
costly.
- If the
condenser fan is making noise, there
may be a build-up of lint or other
debris on the fan blade. The fan is
located near the back of the machine,
sometimes behind a thin panel. To clean
it, first unplug the refrigerator,
remove the thin panel, and use a soft
bristle brush to clean it. If there is
no lint build-up or debris on the
blade, you will have to replace the
motor.
- The
defrost timer is often located at the
bottom of the refrigerator, near the
front and behind the kick plate.
Occasionally the electric motor inside
the timer may become noisy. The timer
must be replaced to solve this
problem.
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The
bottom of the refrigerator
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Noises
detected at the bottom of the refrigerator
almost always originate from the back of
the refrigerator. However, sometimes the
drain pan under the refrigerator will
rattle. You may need to tape the pan in
place to stop a rattle. Also see the
Outside back of the
refrigerator.
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Water can
leak from these areas:
The
bottom front of the refrigerator or
freezer
door
The
back of the
refrigerator
The
inside ceiling of the
refrigerator
The
inside back wall of the
refrigerator
Underneath
the front of the
refrigerator
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The
bottom front of the refrigerator or
freezer door
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Self-defrosting
refrigerators usually dispose of the water
generated during the defrost cycle via a
tube or channel that directs the water to
a pan at the bottom of the refrigerator.
From the pan, the water normally
evaporates. (See a more detailed
explanation of this in the How Things Work
section of our website).
If the tube or channel is clogged or
obstructed, the water backs up and leaks
into the inside of the refrigerator
compartment. Then the water builds up at
the bottom, inside of the refrigerator.
When the water has built up for a time it
may spill out of the front of the door
opening. To fix this problem, clear the
drain tube or channel and allow the
defrost water to flow down to the drain
pan.
In some refrigerators, the defrost water
is intentionally directed down the back
wall of the refrigerator, where it then
flows to the bottom of the refrigerator
compartment and out to a small
drain--usually located beneath one of the
drawers at the bottom of the refrigerator.
If the drain becomes clogged or blocked,
the water may back up. To fix this
problem, clear the obstruction.
Another cause may be the following. The
refrigerator may have doorframe heaters to
evaporate any condensation on the cabinet
frame. If your refrigerator is equipped
with a switch inside that says
energy saver or something
similar, while running in that mode the
door heaters are disabled. Turn the switch
to the opposite setting and wait 24 hours.
If the condensation disappears the problem
is solved.
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The
back of the refrigerator
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Water
coming from the back of the refrigerator
usually comes from either the ice maker
water valve or line (if there is an ice
maker), or from the defrost drain pan.
Here's what to do:
- If the
water is coming from the ice maker
water valve, check to make sure the
water tubes are attached properly and
are fastened tightly.
- If the
water seems to be coming from any part
of the valve itself, replace the
valve.
- If the
water appears to be coming from the
defrost drain pan, inspect for holes or
cracks, and replace the pan if
necessary.
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The
inside ceiling of the refrigerator
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Water
accumulating on the ceiling of the
refrigerator is usually caused by a
clogged drain in the freezer section
beneath the evaporator. The clogged drain
will cause water from the self defrost
cycle to leak into the divider between the
freezer and refrigerator. This water may
then freeze and cause condensation
build-up on the refrigerator ceiling. The
solution to this problem begins with
unclogging the drain. It may also be
necessary to remove the entire
freezer/refrigerator divider to thoroughly
dry the insulation in the divider.
Occasionally the insulation needs to be
replaced to prevent a recurrence of the
problem. This can be a big job you
may want to hire a qualified appliance
repair technician.
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The
inside back wall of the
refrigerator
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In some
refrigerators, the water from the defrost
cycle is intentionally directed down the
back wall of the refrigerator, where it
then flows to the bottom of the
refrigerator compartment and out to a
small drain - usually located beneath one
of the drawers at the bottom of the
refrigerator. If the drain becomes clogged
or blocked, the water may back up. To fix
this problem, clear the obstruction.
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Underneath
the front of the refrigerator
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If the
refrigerator is equipped with a water
dispenser on the freezer door, check if
the water line to the dispenser is
leaking. Also, check the drip pan to be
sure it isnt out of place, broken or
cracked.
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The
freezer compartment is icing up
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See the
Cooling is poor section
above.
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The
food in the refrigerator
freezes
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This is a
common problem that often doesn't have a
clear, permanent solution. The first thing
to check is the overall internal
refrigerator temperature (see the
Appliance Accessories section for a
refrigerator/freezer thermometer). The
proper temperature should be between 35
and 42 degrees. Here are some things to
try:
- If
your refrigerator temperature is closer
to 35 degrees, try turning the
temperature up slightly.
- If you
find that the temperature varies a lot
from the top shelf to the bottom (where
it is coldest), try putting produce and
other sensitive products on a higher
shelf.
- If the
temperature is too low and you can't
make it warmer by adjusting the
thermostat, you probably have a
defective thermostat. If so, you need
to replace it, because they cannot be
repaired. Other possible problems are a
leak in the sealed (refrigerant)
system, cold air migration (in
side-by-side models) or a defective air
damper. These problems can be quite
difficult to locate and correct, we
recommend you contact a qualified
appliance repair technician.
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There's
water dripping inside the
refrigerator
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Self-defrosting
refrigerators dispose of the water
generated during the defrost cycle,
usually via a tube or channel that directs
the water to a pan at the bottom of the
refrigerator. From the pan, the water
normally evaporates. (See a more detailed
explanation of this in the How Things Work
section of our website).
If the tube or channel is clogged or
obstructed, the water backs up and leaks
into the inside of the refrigerator
compartment. Then the water builds up at
the bottom, inside of the refrigerator.
When the water has built up for a time it
may spill out of the front of the door
opening. To fix this problem, clear the
drain tube or channel and allow the
defrost water to flow down to the drain
pan.
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The
refrigerator never cycles off
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The
thermostat cycles the refrigerator on and
off. The refrigerator normally runs as
long as the temperature inside the
refrigerator is higher than the set
temperature. If the temperature inside the
refrigerator is cold enough and the
thermostat still does not cycle off, the
thermostat may be defective. If so, you
need to replace it, because it cannot be
repaired. If the thermostat is not
defective, you may have a problem with the
sealed (refrigerant) system, in which case
you should contact a qualified appliance
repair technician.
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The
ice maker has a problem
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The ice
maker is a separate appliance within the
freezer section. Please see the How things
Work section of our website to learn about
the normal functioning of ice makers. Some
common problems with ice makers are:
The
ice maker has completely stopped producing
ice
The
ice maker is producing ice
poorly
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The
ice maker has completely stopped producing
ice
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Check to
see whether the ice maker has been turned
off. Here's how to check. Look for a wire
along the right side of the ice maker that
looks a bit like a coat hanger. If this
wire is in the raised position, the ice
maker is turned off. On some units you
simply lower the wire to the down position
to turn the ice maker on. On others, you
lower a small red plastic lever to lower
the wire. If the wire is in the proper
position check the freezer temperature, it
should be between 0-8 degrees Fahranheit.
If it is warmer than 10-12 degrees, the
ice maker may not produce any ice. Check
your door seals and thermostat,
repair/replace as necessary.
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The
ice maker is producing ice poorly
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When an
ice maker is producing ice poorly--when it
produces just a few cubes or none, or when
the cubes are too small--it's usually
because of a clogged water line or a
defective water inlet valve.
First, check the water line attached to
the back of the refrigerator for good
water flow. To do that, first turn off the
water supply valve. Then remove the water
line from the back of the refrigerator.
Next, place the water line into a bucket
and momentarily turn the water valve back
on to test the flow. If the flow is poor,
you need to repair, clean, or replace the
tubing or the shut-off valve that supplies
the water. If the flow is good, you may
have to replace the water inlet valve.
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There's
an ice- or water-dispensing
problem
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The ice
and water-dispensing system of your
refrigerator is quite complex. Many
components work together to provide the
ice and water. Aside from a simple problem
of a leaky water tube or a jammed ice
chute, most other components are not user
serviceable. We suggest that you contact a
qualified appliance repair technician for
such repairs.
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