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128

Error 128 — Indoor unit EVA IN temperature sensor detached

Samsung · AC & Climate Systems

What does 128 mean?

The EVA IN temperature sensor has become detached from the EVA IN pipe. This will lead to inaccurate temperature readings.

Common Causes

  • Sensor has come loose from the pipe
  • Improper initial installation
  • Vibration causing detachment

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Re-attach the EVA IN temperature sensor securely to the EVA IN pipe.

  2. 2

    Ensure the attachment method (e.g., clip, tape) is functioning correctly.

  3. 3

    Verify the sensor is positioned as per the installation manual.

  4. 4

    Check for any signs of damage to the pipe or sensor during re-attachment.

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