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E052

E052 — DP/MP communications time-out

Wilo · VeroLine and VeroTwin Pumps

What does E052 mean?

Communication between pump units in a dual (DP) or multi-pump (MP) system has failed or is defective.

Common Causes

  • Defective communication cable between pumps.
  • Loose cable connections.
  • One of the pump units has failed.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the communication cable between the pumps for damage.

  2. 2

    Ensure all cable connections are secure.

  3. 3

    Restart both pump units.

  4. 4

    If the error persists, contact customer service.

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