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254

Code 254 - Blower failed

Junkers · Cerapur 9000i Boiler

What does 254 mean?

The boiler's blower (fan) has failed. This is a blocking fault that prevents proper combustion and exhaust.

Common Causes

  • Dirt or blockage in the fan
  • Faulty fan wiring or plug connections
  • Defective fan component

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the fan for any dirt and blockage, and clean if necessary.

  2. 2

    Inspect the fan wiring and plug connections for any damage or loose contacts.

  3. 3

    If the fan is defective, replace it to restore operation.

Browse all codes in this manual (48)
Verified technical data. Last updated: April 2026

Related Faults

0.9 BAR0.9 BAR — Low operating pressure101Code 101 - Mains voltage lower than allowed1019Code 1019 - Flame formation after burner switches off
Source: Junkers Cerapur 9000i Boiler
Open Manual (Page 38)Search more codes in this manual