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102

Error 102 - Indoor/Outdoor unit communication error

Samsung · Home Automation

What does 102 mean?

This error is displayed on the indoor unit and indicates a problem with data exchange between the indoor and outdoor units.

Common Causes

  • Communication wiring issues
  • Incompatible settings between units
  • Power supply problems to one of the units

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the communication cable connections between the indoor and outdoor units to ensure they are secure.

  2. 2

    Ensure both the indoor and outdoor units have a proper and stable power supply.

  3. 3

    Reset the units by cycling their power off for 30 seconds and then on again.

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

Related Faults

101Error 101 - Indoor unit communication error108Error 108 - Repeated address setting110Error 110 - Hydro unit communication error
Source: Samsung Home Automation
Open Manual (Page 22)Search more codes in this manual