How to Stop a Fridge From Ice Build Up. Ice build up in the fridge or freezer is a serious problem because it can keep the temperature in the unit too high, potentially spoiling the food in it. If the unit is still under warranty, be sure to call a technician because doing repairs yourself could void any warranty on the unit. If it isn't under warranty, here are a few tips to help you.
Determine the temperature setting. The refrigerator should be set to temperatures ranging from 34 degrees to 40 degrees, while the freezer should be below 30 degrees. Adjust the temperature setting which will naturally improve the ice build up that's been caused by the wrong temperature setting.
Move the refrigerator away from the wall. Oftentimes, this simple action is all that is needed because the unit is not getting enough air circulation behind it. Also, some refrigerators have vents underneath the unit, which are easily clogged with debris. Clean these vents and coils.
Remove food and shelving from the refrigerator and freezer portions of the fridge. If ice build up is happening in the freezer, the drain in the freezer may be clogged. With the unit off, remove coverings to expose drain and pour hot water down the drain hole until it comes out into the drain drip pan under the fridge.
Check the condenser coils. The evaporator coils could be causing the problem of ice build up. If this is the case, professional repair is likely needed to replace the motor, thermostat or other problems within the fridge. A handy person can make many of these repairs with experience by purchasing the parts they need online.
Call a repair technician to come to the home to check the unit for problems. It can be helpful to have a professional determine the source of the problem, but then to do the work yourself by refusing their service. Order the parts and make the required repairs.