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POWER LED blinking (0.5s ON, 0.5s OFF)

POWER LED blinking (short interval) — Unit is in a special operation mode

Panasonic · Air Conditioner Panasonic PRO Club

What does POWER LED blinking (0.5s ON, 0.5s OFF) mean?

The Power LED blinks with a 0.5-second interval (on and off). This typically signifies that the unit is in a special operating mode, such as residual heat removal, hot start, deice operation, mode judgment, or ON timer sampling.

Common Causes

  • Unit performing residual heat removal
  • Unit in Hot Start phase
  • Unit in Deice operation
  • Unit performing operation mode judgment
  • Unit in ON timer sampling

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Wait for the current special operation to complete naturally.

  2. 2

    Check the remote control to see if a specific mode is active.

  3. 3

    Consult the manual for details on the specific operation mode indicated.

Browse all codes in this manual (31)
Verified technical data. Last updated: April 2026

Related Faults

2 beeps2 beeps - Confirmation of Forced heating operation start3 beeps3 beeps - Remote Control Number Switch Mode standby4 beeps4 beeps - Remote Control Receiving Sound Off/On Mode standby
Source: Air Conditioner Panasonic PRO Club
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