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E031

E031 — Excess hybrid/power section temperature

Wilo · VeroLine and VeroTwin Pumps

What does E031 mean?

The temperature in the hybrid or power section of the electronic module is too high.

Common Causes

  • High ambient temperature.
  • Poor ventilation in the installation location.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Improve ventilation around the pump unit.

  2. 2

    Reduce the ambient temperature if possible.

  3. 3

    Ensure the pump is not installed in an enclosed, unventilated space.

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