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232

Code 232 - Insufficient flame formation during burner operation

Junkers · Cerapur 9000i Boiler

What does 232 mean?

During the burner's operation, there is insufficient flame formation (ionization current). This can lead to inefficient heating or shutdowns.

Common Causes

  • Low dynamic gas pressure
  • Incorrect gas/air ratio
  • Faulty ignition or ionization current detection
  • Faulty monitoring electrode or its connections

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the dynamic gas pressure.

  2. 2

    Check the gas/air ratio and adjust if required (professional task).

  3. 3

    Check the ignition and ionization current, and the wiring/plug connection of the monitoring electrode.

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