Worcester Bosch Venturi 87182050280

The Worcester Bosch 87182050280 is a venturi used in the combustion circuit of Worcester Bosch Greenstar gas boilers. It sits in the air and gas mixing path, where the pressure drop across the throat draws gas into the incoming air stream before the mixture reaches the burner. Correct venturi operation is central to stable ignition, clean combustion and consistent modulation across the boiler's output range.

• Combustion readings that drift outside the expected CO2 or CO range and cannot be corrected by adjustment
• Repeated ignition lockouts or flame failure shortly after the burner lights
• Unstable or lifting flame, or a burner that will not hold a steady mixture
• Whistling or unusual induction noise from the fan and air inlet area
• Soot deposits or discolouration around the burner and heat exchanger

• Check the GC number and appliance serial plate against the compatibility list to confirm the correct venturi for your model
• Confirm the previous number DD97909190 and alternative number 1020155 before ordering, as these may be marked on the existing component
• Inspect the surrounding seals and gaskets on removal and replace any that are disturbed
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.