Chaffoteaux Fan Venturi Pressure Sensing 61010337

The Chaffoteaux 61010337 is a pressure sensing fan venturi, manufactured by Chaffoteaux Et Maury. It sits in the fan and flue air path of the appliance, where it creates the pressure differential used to prove that air is moving through the combustion circuit before the boiler is allowed to fire. It is a serviceable component on the Britony Combi and Baxi Genesis families of gas appliances.

• The appliance locks out on ignition or fails to prove the fan and air circuit, with the air pressure switch not making.
• Combustion readings drift out of range, or the flue gas analyser shows unstable CO and CO2 figures across a service.
• The burner flame is noisy, lifting or unstable at low fire, pointing to incorrect air and gas mixing.
• Sooting or discolouration around the burner or heat exchanger, suggesting the venturi is restricted or distorted.
• Visible cracking, blockage or debris build-up inside the venturi throat on inspection.

• Check the GC number and appliance serial plate against the compatibility list to confirm the correct variant for your model.
• Confirm the number on the part being removed matches 61010337 or one of the previous numbers listed below.
• Inspect the fan and flue seals while the appliance is open and replace any gasket or seal that is disturbed during the swap.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.