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Operation starts automatically

Operation starts automatically when timer is not set — Sterilisation timer

Panasonic · Aquarea Heat Pumps

What does Operation starts automatically mean?

The system may start operating automatically outside of normal timer settings if a 'Sterilisation timer' function has been activated.

Common Causes

  • Sterilisation timer function is enabled.
  • System is performing a scheduled sanitisation cycle.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the remote controller or app settings for any active sterilisation timers.

  2. 2

    Disable the sterilisation timer if automatic operation is not desired.

  3. 3

    Refer to the user manual section on timers for specific instructions.

  4. 4

    If you did not set this, contact your installer to review system settings.

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
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