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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.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.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 heater. To determine if the defrost heater is burned out, watch this part testing video
Sometimes ice will build up because of hummity. dont know where your at but best thing would be to get everything out and turn off . and defrost manually we used to do this on old friges with a hairdryer. it takes a while. when you start it back up make sure the seal seals good and if ice builds up again the your going to get to call repair man. Hvac and all compressors go through defrost mode. You may have so much ice it wont defrost, also a full freezer works more effecient than empty.
there are only 2 reasons this happens but one cause (defrost element not working) 1st we check the defrost timer is working if not replace it if it is working go on to the last fault it can be - depending on the freezer it will have 1 or 2 defrost elements when one blows the ice will slowly build up if they both blow then the ice will build up within days unless you know your way around a multimeter it will be very hard to determin witch unit has blown in 70% of cases its the element but a service tech can tell you in a matter of minutes to save you time and money i would get a quote to get a tech in but now you know what to look for
best of luck to you please remember to rate this repair .thank you
This is the moisture coming out of the food. It is what causes freezer burn.
The problem is made worse in frost free models by the defrost cylce. Best way to slow it down is to use vacuum bags or freezer bags. Also above 0 F food deterioates faster and below it gets freezer burn and the moisture problem faster.
Defected DEFROST HEATER can cause frost build up on the panel at the back of the freezer,and freezer stop cooling and ice frozen on unit so air could not flow to refrigerator side.Water will coming out caused of unbalanced freezing,and causing the flooding of water in the floor. You must change this defroster heater assembly so it will works normal again..
Defrost timers usually cause this type of frost build up. However it can also be caused by the defrost heater and/or heater thermostat, and these items are behind the panels therefore not easy to get to. Also before you attempt to take the panels apart make sure the refrigerator is unplugged.
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