LG LFX28968SW Service Manual - Page 41
Check the R Sensor resistance.
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9-8 Over cooling in Refrigerator room No Checking flow 1 Check the R Sensor resistance. ※ The R Sensor is determined by the temperature. For example, 30㏀ indicates 32°F. 2 Reset the unit and Input Test 1 Mode. (Push the button 1 time) Result & SVC Action Temperature 23°F / -5°C 32°F / 0°C 41°F / 5°C 50°F / 10°C 59°F / 15°C Result 38 ㏀ 30 ㏀ 24 ㏀ 19.5 ㏀ 16 ㏀ 3 Open Refrigerator room door and Check the air flow. 4 Input Test 2 Mode and Check the air flow. (push the button 1 more time) Status Windy No windy SVC Action Go to the 4 Check the R Fan Check the damper (Go to the 5) Status Windy No windy SVC Action Go to the 5 It's normal 5 Check the damper resistance. (1) (2) (3) (4) Test Point (1) To (2) (3) To (4) Result 370 ~ 450 Ω Other 370 ~ 450 Ω Other SVC Action It's normal Change damper It's normal Change damper - 41 -
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