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Indoor temperature sensor (open/short error)

Indoor temperature sensor error — Room temperature sensor fault

Samsung · Air Conditioning

What does Indoor temperature sensor (open/short error) mean?

The indoor unit's room temperature sensor has an open or short circuit, meaning it cannot correctly read the room temperature. This is an indoor sensor error and will cause the unit to turn off.

Common Causes

  • Faulty indoor unit room temperature sensor.
  • Problem with the indoor unit PCB connector CN41 (white).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the indoor unit room temperature sensor for visible damage or disconnections.

  2. 2

    Inspect the indoor PCB connector CN41 (the white connector) to ensure it is securely connected.

  3. 3

    Turn off the air conditioner, wait a few minutes, then turn it back on to see if the error clears.

Browse all codes in this manual (94)
Verified technical data. Last updated: April 2026

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Source: Samsung Air Conditioning
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