Refrigerators that need to be manually defrosted and washed monthly have become a thing of the past. Modern models are equipped with an automatic defrosting system, which performs its functions unnoticed by the owners. True, manufacturers still recommend defrosting the refrigerator times a year manually for prevention purposes.
If your refrigerator has ice build up on the inside, here are a few things you can check yourself to fix the issue. A common cause for ice buildup is a faulty door seal. If a refrigerator has a bad door seal, the outside air will pass into the fridge and cause the ice build up problem you are experiencing.
If frost is building up in the freezer, check first for a break in the door gasket that could be letting in warm, moist air. If the gasket seems sound, a malfunction somewhere in the automatic defrost system could be the culprit. A failed defrost timer or a bad electronic control board may not initiate the automatic defrost cycle, causing excessive frost buildup on the back wall inside the freezer. A faulty defrost sensor can prevent the defrost heater from turning on the defrost cycle.
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Opening the door frequently can let in humid air. Opening the door less often will help, but may not completely eliminate frost or ice in the freezer. Objects blocking the vents will cause a decrease in proper air circulation, which can cause temperature and moisture problems to occur.
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View All Freezer Thermostats. If your frost-free freezer has frost buildup, particularly around the evaporator, there may be an issue with the defrost thermostat. This type of freezer has a defrost heater to melt frost from the evaporator coil to keep it from frosting over.
Freezers are meant to keep things on ice. However, sometimes they can also cause excess ice to buildup. This excess ice can cause your freezer to suddenly feel a lot smaller than it should.