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F16

F16 - Total running current protection

Panasonic · Aquarea Heat Pumps

What does F16 mean?

The total running current has exceeded limits, triggering protection. This has occurred 3 times within 20 minutes. The OFF/ON LED will blink.

Common Causes

  • Excess refrigerant
  • Outdoor PCB fault

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the refrigerant levels are correct.

  2. 2

    Inspect the outdoor PCB for any visible damage.

  3. 3

    Ensure proper ventilation around the outdoor unit.

  4. 4

    Contact a qualified installer or service technician for diagnosis.

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 76)Search more codes in this manual