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H63

H63 — Refrigerant low pressure abnormality

Panasonic · Air Conditioning

What does H63 mean?

This code indicates a low pressure abnormality in the refrigerant. It triggers if the condition persists for 5 seconds.

Common Causes

  • Outdoor low pressure sensor is defective or disconnected

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check if the outdoor low pressure sensor is defective.

  2. 2

    Ensure the outdoor low pressure sensor is properly connected.

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

Related Faults

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Source: Panasonic Air Conditioning
Open Manual (Page 162)Search more codes in this manual