Why Force a Defrost – Samsung RefrigerationRichard Sedlack
Courtesy of Richard Sedlack, Owner/Lead Trainer, Level 2 Learning
Due the danger and complexity of electronics repair, the following shared technical tips are intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.
Since the Genesis of Electronically-Controlled Refrigerators in 2000, one of the first questions I am asked during training is “How do I put (it) into DEFROST?” The “It” being the brand of refrigerator I am training on that session. As a Field Engineer, the reason seems obvious: defrost system components are among the top replaced parts for a “no cool” complaint. The ability to energize that system for testing is a must.
But with Samsung, there are many more procedures that require this. In these cases, you need to Force Defrost before taking one tool out of your bag. Why? For one, removal of the Direct Contact Icemaker. This system includes the icemaker “clamped” to an evaporator tube. Force Defrost, indicated as “Fd” on the seven segment displays, activates the ice maker’s heater loop as well. In fact, depending on the model you are working on, Force Defrost will also activate other electric heaters in the appliance. Those may include the fill tube heater, damper door heaters and duct heaters, besides the obvious defrost heater. Regardless, removing that icemaker while it is frozen to the cooling tube will result in YOU buying the customer a new refrigerator.
But wait, there’s more! Since Samsung’s evaporator covers are mounted so close to the evaporator itself, it is a MUST to Force Defrost before attempting to remove that cover. If not, it’s a sure bet the compressed foam type insulation behind the cover will break, and air flow will be severely compromised upon reassembly.
How do you Force Defrost? Well, on “tabletop” control models, press the Power Freeze and Fridge buttons simultaneously for about 8 seconds, until the display goes blank. Then, press any other button until “Fd” appears. A Beep should sound and defrost begins.
For dispenser models, press Freezer (top left) and Lighting (middle right) buttons simultaneously for about 8 seconds, until the display goes blank. Then, press any other button until “Fd” appears.
After complete you MUST disconnect from power to reset! As always, refer to the Samsung Fast Track Document for the model in question to verify. For some older models with bar level display, you must refer to the Fast Track for that model. Work smarter, Not harder.