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F46

F46 — Outdoor Current Transformer open circuit

Panasonic · Air Conditioning

What does F46 mean?

This error indicates an open circuit in the Outdoor Current Transformer.

Common Causes

  • Insufficient refrigerant
  • Outdoor PCB fault
  • Compressor low fault

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check refrigerant levels.

  2. 2

    Inspect the outdoor PCB.

  3. 3

    Verify compressor low fault.

Browse all codes in this manual (53)
Verified technical data. Last updated: April 2026

Related Faults

Error code on Timer display LCDError code on Timer display LCD - Specific fault identifiedF12F12 - Pressure switch activateF14F14 - Outdoor compressor abnormal revolution
Source: Panasonic Air Conditioning
Open Manual (Page 163)Search more codes in this manual