Weishaupt Incomplete combustion / sooting

Visible smoke from chimney or flue terminal

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

Incorrect air setting, Blocked air intake, Dirty burner head or nozzle, Incorrect fuel type or quality

Safety: Sooting can damage the heat exchanger and increase CO risk. Reduce operation and arrange service.

Steps:

Air intake: Ensure the combustion air intake is unobstructed.
Fuel quality: For oil burners, confirm correct grade of heating oil is used. For gas, ensure no unauthorized additives are present.
Schedule service: A Weishaupt technician should clean the burner, check the nozzle/injectors, and perform combustion analysis to set the correct air/fuel ratio.

Hard 4/5

Burner Nozzle / Gas Injector

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