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Power on reset (1sec)

RED LED on for 1 second - Power on reset

Samsung · Air Conditioning

What does Power on reset (1sec) mean?

The RED LED lights up for 1 second during a power on reset. This is a normal part of the startup sequence.

Common Causes

  • Normal system startup.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    No action is required as this is a normal power-on indication.

  2. 2

    Allow the unit to complete its startup sequence.

  3. 3

    Observe the unit for any other error codes or abnormal behavior after startup.

Browse all codes in this manual (137)
Verified technical data. Last updated: April 2026

Related Faults

Abnormal displayAbnormal outdoor LED display - Error modeAll LEDs offAll outdoor unit LEDs off - No powerC101/C102C101 or C102 - Indoor to outdoor communication error
Source: Samsung Air Conditioning
Open Manual (Page 13)Search more codes in this manual