Buying a freezer without an automatic defrost function saves electricity, but commits you to defrosting the freezer periodically. There are several reasons why ice builds up in a freezer...
The switch lever is riding on a cam driven by a synchronous timer motor. The timer motor is designed to switch into the defrost mode every 8 hours. Sometimes the timer is wired to switch to defrost after 8 hours of compressor run time. The defrost heater is positioned under and up both sides of the evaporator coils.
Automatic defrosting of the freezer compartment • Automatic defrosting of the cooling compartment • •Fast freeze function Coolmatic function for quickly chilling fresh food • Freezer with Frostmatic function for rapid freezing • Holiday function to minimize energy consumption during long absence avoiding mould and bad odours •
When the defrost heater is on, it is normal to see a red, yellow, or orange glow from the freezer. Manual Defrost or Partial Automatic Defrost (compact) You must manually defrost by turning off the refrigerator and letting it warm to room temperature. There is not a defrost heater in these models.