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Risk of explosion from flammable gases

Risk of explosion from flammable gases — Gas leak suspected or during gas work

Junkers · Cerapur 9000i Boiler

What does Risk of explosion from flammable gases mean?

This warning highlights a critical safety hazard related to flammable gases, likely indicating a gas leak or the need for extreme caution when working on gas-carrying parts.

Common Causes

  • Gas leak in the system.
  • Improperly tightened screw connections after maintenance.
  • Working on gas-carrying parts without closing the gas tap.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Immediately close the main shut-off device or the gas tap under the device.

  2. 2

    Do not operate any electrical switches or open flames.

  3. 3

    Evacuate the area and contact a qualified gas technician or emergency services immediately.

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 31)Search more codes in this manual