CodeRegistry
Brands
  1. Home
  2. Samsung
  3. AC & Climate Systems
  4. 101
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

101

Error 101 — Indoor unit communication error

Samsung · AC & Climate Systems

What does 101 mean?

The indoor unit cannot receive data from the outdoor unit. This indicates a communication problem between the two main components of the system.

Common Causes

  • Indoor unit communication cable issue
  • Outdoor unit communication cable issue
  • Incorrect system configuration

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the communication cable connections between the indoor and outdoor units.

  2. 2

    Ensure the communication cables are not damaged.

  3. 3

    Verify that the system configuration settings are correct.

  4. 4

    Restart the system by turning off the power for 30 seconds and then turning it back on.

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

Related Faults

102Error 102 — Communication error between indoor and outdoor units108Error 108 — Repeated address setting110Error 110 — Communication error between Hydro unit and Control kit
Source: Samsung AC & Climate Systems
Open Manual (Page 22)Search more codes in this manual