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Power LED blinking (in COOL mode, Heating Only Activated)

Power LED blinking — Cooling mode stopped during Heating Only Operation

Panasonic · CS-Z

What does Power LED blinking (in COOL mode, Heating Only Activated) mean?

If the unit is set to 'Heating Only Operation' and the mode is switched to 'COOL', the unit will stop, and the Power LED will blink.

Common Causes

  • Attempting to use cooling mode when 'Heating Only Operation' is activated

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the unit is set to an appropriate mode for the desired function (heating or cooling).

  2. 2

    If heating is desired, confirm 'Heating Only Operation' is activated.

  3. 3

    If cooling is desired, deactivate 'Heating Only Operation' via the remote control settings.

  4. 4

    Refer to page 86 for instructions on activating/deactivating 'Heating Only Operation'.

Browse all codes in this manual (42)
Verified technical data. Last updated: April 2026

Related Faults

3 beepsThree beeps when checking errors — No abnormality storedBeep (Normal Operation -> nanoeX Operation)Single Beep — Switching to nanoeX operationBeep (Stop -> nanoeX individual Operation)Single Beep — Starting nanoeX individual operation
Source: Panasonic CS-Z
Open Manual (Page 86)Search more codes in this manual