Samsung Refrigerators2010–present

Error Code

The refrigerator ice maker temperature sensor isn't reading correctly

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: LED blinks in self-diagnostic checklist position 14

What This Means

Ice maker refrigerator thermistor disconnected; Wire harness damaged from ice maker to Main PBA; Thermistor defective (open circuit or short); Main PBA defect

What actually causes this:

The ice maker sensor wire came loose or sensor failed

First Thing to Check

Check if ice production has stopped in refrigerator dispenser

Parts Involved

Ice Maker Refrigerator Thermistor 502ATWire Harness CN90Main PBA

How to Fix

  1. 1

    1. Measure voltage at MAIN PCB CN90 between pins 14 and 24 — must be 4.5V to 1.0V

  2. 2

    2. Check connector at refrigerator ice maker sensor

  3. 3

    3. Disconnect CN90 and measure thermistor resistance (power off)

  4. 4

    4. At 77°F (25°C), should read 5.0 kΩ

  5. 5

    5. If resistance is normal, replace Main PBA

This Error Applies To

Samsung RF23R6 Series Refrigerators (2010) (2010–present)

Service manual exact match: RF23R6201AAService manual exact match: RF23R6201EDService manual exact match: RF23R6201AZService manual exact match: RF23R6301AAService manual exact match: RF23R6201BZ

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