Immergas Gas Leak at Appliance

There is a smell of gas near the water heater, but the unit may still operate.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Loose gas union, Damaged gas valve body, Cracked gas pipe, Faulty sealing washers

How to Fix / Troubleshooting

Danger: If you smell gas, do not operate electrical switches, do not use open flames, and ventilate the area immediately.

  • Shut off gas: Close the main gas shut‑off valve to the Immergas heater and, if necessary, the main gas supply to the building.
  • Do not attempt repairs: Do not tighten or loosen gas fittings unless you are a licensed gas technician.
  • Call emergency services or gas provider: Report the leak and follow their instructions.

Warning: Gas leaks are life‑threatening. Only qualified personnel should locate and repair the leak using leak detection equipment.

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Repair Difficulty

Professional Required 5/5

Required Part

Gas Valve
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