LG LFX28968SW Service Manual - Page 46
Component Testing Information
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11. COMPONENT TESTING INFORMATION 11-1 Defrost Controller Assembly Function The controller assembly is made up of two different kinds of parts. The fuse and the sensor. To determine if these parts are defective, check for resistance. The fuse will cut power to the defrost heater at very high temperatures. How to Measure (Fuse-M) (1) to (2) Set a ohmmeter to the 2 housing pin. Measure the 2 pin connected to Fuse-M. If the ohmmeter indicate below 0.1ohm fuse-m is a good condition, But if infinite the part is bad. How to Measure (Sensor) (1) to (2) Set a ohmmeter to The 2housing pin. Measure the 2 pin connected to Sensor. If the ohmmeter indicate 11㏀ (at room temperature) Sensor is good. When check the ohm at other temperatures Check the sensor manual. Standard Fuse-M (at all temperature) Test Point (1) to (2) Ressult 0 ~ 0.1Ω Sensor (at room temperature) Test Point (1) to (2) Ressult 11Ω - 46 -