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351, 328

Code 351, 328 - Incorrect KIM or burner mismatch

Junkers · Cerapur 9000i Boiler

What does 351, 328 mean?

The attached KIM (Coding Identification Module) does not match the automatic burner, or the burner automat reads an incorrect value. This prevents proper operation.

Common Causes

  • Incorrect KIM installed
  • Automatic burner mismatch with KIM
  • Incorrect numbers on the automatic burner

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the KIM with the correct KIM number is attached.

  2. 2

    Check the numbers on the automatic burner and verify they correspond to the system's requirements.

  3. 3

    If the issue persists, replace the KIM or the automatic burner and check device performance.

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 39)Search more codes in this manual