CodeRegistry
Brands
  1. Home
  2. Wilo
  3. Yonos PICO Pumps
  4. E23
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

E23

E23 - Short-circuit

Wilo · Yonos PICO Pumps

What does E23 mean?

The LED display shows E23, indicating a short-circuit or that the motor current is too high. The pump will likely switch off.

Common Causes

  • Motor current is too high

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