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F31 -06

F31 -06 — Incorrect operation of the 4-way valve

Panasonic · air conditioners Error codes

What does F31 -06 mean?

The 4-way valve, which directs refrigerant flow for heating or cooling, is not operating correctly. This can be due to mechanical issues or valve coil problems.

Common Causes

  • Mechanical failure of the 4-way valve.
  • The valve coil is faulty.
  • Issues within the refrigeration circuit.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the 4-way valve for any visible damage.

  2. 2

    Check the electrical connections to the valve coil.

  3. 3

    Ensure the valve is not obstructed.

  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

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Source: Panasonic air conditioners Error codes
Open Manual (Page 4)Search more codes in this manual