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Customer Questions and Answers for Temperature Sensor (Thermistor) by Samsung

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Manufacturer Part
4.89 (64)
By: Samsung
Part Number: OEM12406743
Manufacturer Part Number: DA32-10110B

This temperature sensor detects fridge compartment temperature and helps the control board regulate cooling for stable food storage. It replaces a failed sensor to restore accurate temperature readings. What it does:

  • Measures internal temperature so the control board can cycle the compressor and fans correctly
  • Can cause incorrect temperatures if it fails—fridge too warm, too cold, or cycling frequently
  • A faulty sensor may affect ice maker or automatic defrost operation
  • Works as part of the refrigerator's temperature-monitoring system, not a user-serviceable electrical control
What's included:
  • One temperature sensor with connector
Install notes:
  • Disconnect power to the appliance before replacing the sensor
  • Handle the sensor and wiring gently; avoid bending or crimping the sensor probe
  • Route and secure the harness as original to prevent pinching or cold-air leaks
  • Test connections for secure fit; verify operation after restoring power

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$95.06

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Questions & Answers

For Samsung Temperature Sensor (Thermistor) (Part Number: OEM12406743)

1 Answer

Hello John. It reads the flow of the water in the unit. If you test across the wires while blowing and turning the wheel, the resistance should change on your meter. Some Samsung diagrams does not include this part.

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1 Answer

Hello James. You need to check and see if the temperature inside the unit is around 0°. If not, the ice production will not be correct.

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Bob for Model Number RS267LASH

I replaced the water valve because water through the door was not shutting off in time. It fixed the issue. However, now ice production is extremely slow. The water valve came with the water flow detector shown here. I'm wondering if the water flow detector AP4135578 is related to slow ice production and perhaps the one I got is bad or if the part is not working correctly will the display show a code? There's proper water volume in the ice tray and the evaporator fan is working. It takes about six to eight hours to cycle a tray of ice. I posted a similar question this weekend and no answer yet.

1 Answer

Hello Bob. Usually this is due to the temp inside the freezer. You need to check and make sure the freezer is running around 0° for proper ice production.

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