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Red LED solid

Red LED solid — Fault detected, requires manual acknowledgement

Wilo · VeroLine and VeroTwin Pumps

What does Red LED solid mean?

A solid red LED indicates a persistent fault condition that the pump has detected and requires manual acknowledgement to attempt a reset.

Common Causes

  • Active fault that has not been cleared.
  • System requires user intervention to continue.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Identify the specific error code displayed on the unit.

  2. 2

    Follow the procedure for acknowledging the fault using the red button.

  3. 3

    Ensure the conditions causing the fault are resolved.

  4. 4

    If the LED remains solid red, contact support.

Browse all codes in this manual (45)
Verified technical data. Last updated: April 2026

Related Faults

3 red flashes3 red flashes — Communication error6.0.0.0 flashes6.0.0.0 flashes — Ready to acknowledge error6.0.0.0 steady6.0.0.0 steady — Error acknowledgement countdown active
Source: Wilo VeroLine and VeroTwin Pumps
Open Manual (Page 53)Search more codes in this manual