LG LFX28968SW Service Manual - Page 60
C1. Harness Connection Check, C2. Capacitor Specifications, C3. Compressor Check
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12-3 Check C C1. Harness Connection Check C2. Capacitor Specifications C3. Compressor Check Check Process - Step 1. Power off. Step 2. Check capacitor spec. (table1). Step3. Check resistance of point A Step 4. Check wire harness (INF ohm). Step 5. Check resistance at point B. Step 6. Point D. Power off Check Y Capacitor Spec. Resistance Y at Point A 6~8ohm N Check wiring to Y Harness Connecting compressor OK N Resistance N at Point B 6~8ohm Y Problem A~B Resistance N at Point D 6~8ohm Y Problem B~D Replace Compressor N Y Check Compressor terminals Harness Problem Caution : Turn off power during check C - Measure the resistance at each point except point C - Dead short check: measure the resistance between power line in compressor and earth ground in refrigerator (Inf. Ohm) TMesutletir Multi Tester A D Po N/C Po: Power Co: Common B N/C: Open terminal OLP C Capacitor Spec. 450V, 18μF±5% Co Resistance FLA075LANA 8.2±1 * Because of ambient temperature or operating situations, the values shown can have a slight deviation. TMesutletir Earth Dead short check TMesutletir P C Hermetic terminal - 60 -