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E026

E026 — Motor WSK or PTC interrupted or motor defective

Wilo · Wilo-Stratos GIGA Pumps

What does E026 mean?

This error indicates a problem with the motor's internal protection (WSK or PTC) or that the motor itself is defective.

Common Causes

  • Motor defective
  • Interruption in WSK or PTC circuit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check motor connections for looseness.

  2. 2

    Verify the integrity of the WSK/PTC wiring.

  3. 3

    If the problem persists, request customer service.

Browse all codes in this manual (40)
Verified technical data. Last updated: April 2026

Related Faults

3 red flashes3 red flashes — Communication errorE.025E.025 — General error codeE000E000 — System OK / No error
Source: Wilo-Stratos GIGA Pumps
Open Manual (Page 55)Search more codes in this manual