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E051

E051 — Impermissible DP/MP combination

Wilo · VeroLine and VeroTwin Pumps

What does E051 mean?

An incompatible combination of pumps has been detected in a dual pump (DP) or multi-pump (MP) system.

Common Causes

  • Different pump models or types are used together.
  • Incorrect pump configuration in a multi-pump setup.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure all pumps in the dual or multi-pump system are compatible.

  2. 2

    Consult the manual for correct pump pairing guidelines.

  3. 3

    Contact customer service if you suspect a configuration issue.

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 51)Search more codes in this manual