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Re: Freezer building up lots of frost, but on lowest...
FREEZERS SHOULD BE TEMP AT O /REFRIGERATOR SHOULD BE 40/FOR PERFECT OPERATION.1ST IS THE FAN RUNNING IN THE FREEZER/IF YES UNPLUG FOR 6-8 HOURS AND RETRY/IF NO UNPLUG THE FRIDGE AND REMOVE THE BACK PANEL OF THE FREEZER MAKE SURE THE FAN IS PLUGGED IN.IF SO PLUG IN THE FRIDGE AND SEE IF THE FAN IS TURNING.IF NOT YOU NEED A NEW FAN IF THE FRIDGE IS NEW MAKE THEM BRING YOU A REPLACEMENT FOR FREE.
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Hello. If you open the freezer door and look on the back wall do you see frost build up on the back wall?,if so yes thier is frost build up in the freezer heres what to check.
DEFROST HEATER ...remove back wall of freezer and you will see a black heater at the bottom of the coil thats frosted up,it looks similar to the bake element in your oven,or in some cases it is going to be a spiraled wires inside of a glass tube. To check it,use a multimeter set to the lowest ohms of resistiance setting and follow and find the wires at the top of that frosted coil,unplug/disconnect those wires and check for continuty with around 5-20 ohms of resistiance. If it has that amount of ohms the heater is good. If your meter display does not change or displays OL the defrost heater is broke and needs to be replaced
DEFROST TERMINATION THERMOSTAT... it's round and has 2 wires and clips to the top of that frosted up coil. IT MUST BE CHECKED WHEN COLD SO BEST TO DO WHEN FROST IS STILL BUILT UP. To check it disconnect the wires on it and check for ZERO ohms of resistiance. As with the heater if the meter display OL or doesnt change,it is the problem
DEFROST CONTROL...it is hard to check for a semi unskilled person and if the heater or defrost t-stat check good its going to be the problem. It will NOT be in the freezer it could be on back wall or inside the control panel in the refrigerator section.
Check your coils underneath the fridge to be sure they are clean.
Check your condensor fan (bottom rear of fridge) to make sure it is blowing air freely.
Make sure you have a good supply in the freezer, All of your cooling comes from the freezer section and a mostly empty freezer will result in more frequent running as ther is not enough stock to help maintian and hold freezing temperatures.
Check your freezer section to make sure there is no visible frost on the back wall of the freezer (down low on the panels behind and slightly above the lowest freezer basket. If you see frost starting to develop it means you have a defrost issue starting and will want to adress it rather quickly. Either a problem with the defrost control board (inside fridge/freezer control compartment) or the defrost thermostat (behind the freezer back panel on top of the evaporator coils).
Hopefully this helps!
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 timerThe defrost thermostat (also called the bi-metal
switch)The defrost heaterIf 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
check the coils underneath and behind the freezer. the back on may be inside on the back wall behind a false panel. If so, disreguard this one. Take a vacuum cleaner and **** as much dust out as you can. This sounds like air flow restriction causing icing on the coils making the freezer go into defrost mode(for the evaporator coil). Also check to see if you hear the fan running when yoiu open the freezer door. It can be replaced if bad
Below the evaporator fan behind the back cover inside the freezer is the evaporator coils. Remove the
back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL)
or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR
How to check
everything http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php If it's heavy buildup-
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air and eventually affect the freezer too.
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
This appears to be a defrost problem. Either the defrost heater is burned out or the defrost thermostat is defective. Look into the rear wall of freezer for a layer of frost building up that will tell you that there more than likely is a large area of snow and frost building up on the evaporator coil. Once you manually defrost the coils you will be able to see the part number WR51X10038 Defrost Heater. It has a glass tube on the outside so it will be easy to spot if the defrost heater element inside is burned out. If you change the defrost heater I recommend that you replace the defrost thermostat part number WR50X10054 Defrost Thermostat. The defrost controls on your model come from the mother board so the is no defrost timer or adaptive defrost. The mother board make the decision when to defrost. When you are able to unplug and inspect the evaporator coils in back of freezer back wall panel let me know what you find, Thanks Sea Breeze
The problem is ice build up on the back wall. The noise you hear is the fan blades hitting the ice. On the back wall water gets trapped, it then builds up over time, and a big ball of ice forms and blocks the fan. Take off the back wall, defrost the build up and cut the insulation off as above. The water will no longer get trapped and the problem will not come back.