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F25

F25 — Improper addressing of indoor units (address conflict)

Panasonic · air conditioners Error codes

What does F25 mean?

This error occurs in systems with multiple indoor units. It means there's a conflict in how the indoor units are addressed, causing communication issues.

Common Causes

  • Two or more indoor units have the same address setting.
  • The addressing settings on the indoor units are incorrect.
  • A problem with the central control system.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the addressing settings for all indoor units.

  2. 2

    Ensure each indoor unit has a unique address.

  3. 3

    Refer to the installation manual for correct addressing procedures.

  4. 4

    Turn off the unit, unplug it, wait 30 seconds, and plug it back in to reset.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

F15F15 — Condensate drain issue or drain pan overflowF16F16 — Blinds (vents) motor not connected or malfunctioningF17F17 — Problem connecting optional accessories or additional contacts
Source: Panasonic air conditioners Error codes
Open Manual (Page 2)Search more codes in this manual