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E25

E25 - Winding defective

Wilo · Yonos PICO Pumps

What does E25 mean?

The LED display shows E25, indicating a defect in the motor winding. The pump will likely switch off.

Common Causes

  • Motor winding is defective

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Disconnect the pump from the power supply.

  2. 2

    Contact Wilo customer service or a specialist technician.

Browse all codes in this manual (17)
Verified technical data. Last updated: April 2026

Related Faults

Bars bottom to top blinkBars bottom to top blink - Pump venting function activeBuilding does not get warmBuilding does not get warm - Heating output too lowE04E04 - Undervoltage detected
Source: Wilo Yonos PICO Pumps
Open Manual (Page 20)Search more codes in this manual