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3 red flashes

3 red flashes — Communication error

Wilo · Wilo-Stratos GIGA Pumps

What does 3 red flashes mean?

This indicates a communication error, possibly between internal components or connected systems.

Common Causes

  • Interrupted communication link
  • Faulty communication hardware
  • Software glitch

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check all cable connections related to communication.

  2. 2

    Restart the device to clear temporary communication glitches.

  3. 3

    If the problem persists, contact support.

Browse all codes in this manual (40)
Verified technical data. Last updated: April 2026

Related Faults

E.025E.025 — General error codeE000E000 — System OK / No errorE004E004 — Undervoltage
Source: Wilo-Stratos GIGA Pumps
Open Manual (Page 55)Search more codes in this manual