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231, 227, 216, 228, 242, 262, 243, 247, 248, 282, 244, 281, 290, 249, 283, 270, 261, 273, 263, 245, 256, 257, 280, 250, 272, 284, 253, 264, 246, 269

Code Group - Automatic burner or KIM is defective

Junkers · Cerapur 9000i Boiler

What does 231, 227, 216, 228, 242, 262, 243, 247, 248, 282, 244, 281, 290, 249, 283, 270, 261, 273, 263, 245, 256, 257, 280, 250, 272, 284, 253, 264, 246, 269 mean?

This group of codes indicates that the automatic burner or the Coding Identification Module (KIM) is defective. This is a critical interlocking fault that requires a reset after correction and often professional intervention.

Common Causes

  • Defective automatic burner component
  • Defective KIM (Coding Identification Module)
  • Faulty wiring or plug connections of the burner control unit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the wiring and plug connections of the burner control unit.

  2. 2

    Ensure the KIM is correctly installed and corresponds to the burner.

  3. 3

    If the fault persists, the automatic burner or KIM must be replaced by a qualified service technician 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 37)Search more codes in this manual