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Outdoor unit emits water/steam

Outdoor unit emits water or steam — Condensation or defrost

Panasonic · Aquarea Heat Pumps

What does Outdoor unit emits water/steam mean?

It is normal for the outdoor unit to release water or steam. This occurs due to condensation during cooling or as part of the defrost cycle during heating.

Common Causes

  • Condensation forming on cold pipes.
  • Defrost cycle removing ice from the outdoor heat exchanger.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    This is a normal operational characteristic and does not indicate a fault.

  2. 2

    Ensure the unit's drainage is not blocked.

  3. 3

    If excessive steaming or water discharge occurs outside of expected conditions, contact your installer.

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 18)Search more codes in this manual