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E30

E30 - Module overheating

Wilo · Yonos PICO Pumps

What does E30 mean?

The LED display shows E30, indicating that the interior of the control module has become too warm. The pump may switch off.

Common Causes

  • Module interior is too warm
  • Module is overheated

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the operating conditions around the pump.

  2. 2

    Ensure adequate ventilation and that the ambient temperature is within the specified limits.

  3. 3

    Allow the module to cool down before restarting.

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