Hoval Gas Leak / Incomplete Combustion

Boiler emits smell of gas around casing or flue area

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.

Possible Causes

Loose gas connection on Hoval gas train, Cracked burner seal, Faulty gas valve not closing fully, Flue gas recirculation causing odour

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

Shut off gas: Close the main gas isolation valve to the boiler.
Ventilate: Open windows and doors to disperse gas.
Evacuate if strong smell: Leave the building and call the gas emergency service and a Hoval-authorised technician from a safe location.
Do not attempt to tighten gas fittings yourself. A licensed gas engineer must locate and repair the leak and perform a tightness test before the boiler is used again.

Professional Required 5/5

Gas Valve / Gas Train Seals

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