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E042

E042 - Sensor cable (4–20 mA) interrupted

Wilo · Helix VE Pumps

What does E042 mean?

The sensor cable (4–20 mA) has an interruption. The red LED will light up.

Common Causes

  • The sensor cable (4 – 20 mA) is interrupted

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the pump and wait 60 seconds.

  2. 2

    Check the supply to the sensor.

  3. 3

    Check the cable connection of the sensor.

  4. 4

    Manually acknowledge the fault after resolving the issue.

Browse all codes in this manual (24)
Verified technical data. Last updated: April 2026

Related Faults

E then 3 digitsE followed by 3 digits - Fault page displayedE001E001 - Pump overloadE004 (E032)E004 (E032) - Low converter supply voltage
Source: Wilo Helix VE Pumps
Open Manual (Page 34)Search more codes in this manual