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129

Error 129 — Indoor unit EVA OUT temperature sensor detached

Samsung · AC & Climate Systems

What does 129 mean?

The EVA OUT temperature sensor has detached from its designated pipe. This will cause incorrect temperature measurements.

Common Causes

  • Sensor has become loose from the pipe
  • Installation error
  • External factors like movement

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Securely re-attach the EVA OUT temperature sensor to the EVA OUT pipe.

  2. 2

    Confirm that the sensor is properly fixed and will not detach again.

  3. 3

    Review the installation guide for the correct placement.

  4. 4

    Ensure the pipe and sensor are not damaged.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

101Error 101 — Indoor unit communication error102Error 102 — Communication error between indoor and outdoor units108Error 108 — Repeated address setting
Source: Samsung AC & Climate Systems
Open Manual (Page 22)Search more codes in this manual