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Display shows alternating error code

Display shows error code — Specific fault information

Wilo · Control EC-Fire Pump

What does Display shows alternating error code mean?

The LCD display shows an alphanumeric code indicating a specific fault within the system. This allows for precise diagnosis and troubleshooting.

Common Causes

  • A specific component or system function has failed or is reporting an error.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Identify the error code shown on the display (e.g., E006, E022.x).

  2. 2

    Locate the corresponding error code in the 'Faults, causes and remedies' section of the manual.

  3. 3

    Follow the 'Causes' and 'Remedy' steps for that specific error code.

  4. 4

    After fixing the issue, acknowledge the fault in the switchgear's menu.

Browse all codes in this manual (14)
Verified technical data. Last updated: April 2026

Related Faults

1 red flash — 1 green flashAlternating red and green flashes — Pump failure detectedE006E006 — Rotating field errorE022.xE022.x — Insulation fault
Source: Wilo Control EC-Fire Pump
Open Manual (Page 40)Search more codes in this manual