Worcester Bosch Inspection Window Greenstar 87156000180

The Worcester Bosch inspection window, part number 87156000180, is a glass assembly that forms the viewing port on the combustion chamber of Greenstar gas boilers. It lets an engineer look into the chamber to check flame picture, burner condition and combustion without dismantling the appliance. The part is supplied by Worcester Bosch and is listed under the sight glass, mirrors and sight assemblies category.

• Cracking, chipping or crazing of the glass, which weakens the assembly and can let products of combustion escape
• Condensation or moisture trapped behind the glass, obscuring the view into the chamber
• Discolouration or staining of the glass that makes the flame picture difficult to read during a service
• Visible damage or distortion to the glass seating after the front plate has been removed
• Soot or debris build-up on the glass that cannot be cleaned off without marking the surface

• Check the GC number and model on the appliance data badge against the compatibility list below before ordering, as the same part number is used across a number of Greenstar variants
• Confirm the alternative number 1013167 matches the part currently fitted if you are replacing like for like
• Inspect the sealing gasket around the glass seating when the old assembly is removed and renew it if it is perished or compressed
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.