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E073

E073 — Impermissible electronic module number

Wilo · VeroLine and VeroTwin Pumps

What does E073 mean?

The electronic module number is not recognized or is incorrect, indicating an internal electronics issue.

Common Causes

  • Internal electronics error.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify that the correct electronic module is installed for the pump model.

  2. 2

    If an incorrect module was installed, replace it with the correct one.

  3. 3

    Contact customer service if you suspect an internal fault.

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 52)Search more codes in this manual