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Room Temp Sensor Error

Indoor Unit Room Temperature Sensor Error — Open or Short circuit

Samsung · Air Conditioning

What does Room Temp Sensor Error mean?

This error means there's a problem with the temperature sensor inside the indoor unit that measures the room temperature. It could be an electrical open circuit or a short circuit.

Common Causes

  • Loose or incorrect connection of the indoor temperature sensor.
  • Internal damage to the temperature sensor, causing it to be open or short-circuited.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power to the air conditioner at the main breaker.

  2. 2

    Inspect the indoor unit for any visible loose connections or damage around the temperature sensor area.

  3. 3

    Restore power and restart the unit.

  4. 4

    If the error persists, a technician may need to check the sensor's resistance value for shorts or opens.

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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