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Operation LED blinking

Operation LED blinking - Abnormality detected

Panasonic · Aquarea Heat Pumps

What does Operation LED blinking mean?

The Operation LED is blinking, indicating that an abnormal operation has occurred within the system.

Common Causes

  • System fault detected
  • Protection control activated

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the control panel for a specific error code.

  2. 2

    Refer to the error code table for details on the abnormality.

  3. 3

    If an error code is displayed, follow the recommended steps for that code.

  4. 4

    If no specific error code is shown, try resetting the power to the unit.

Browse all codes in this manual (69)
Verified technical data. Last updated: April 2026

Related Faults

2 beeps then pause2 beeps then pause - Overfill warning3 red flashes3 red flashes - Communication errorError Code DisplayError Code Display - Abnormality detected
Source: Panasonic Aquarea Heat Pumps
Open Manual (Page 59)Search more codes in this manual