Worcester Bosch Automatic Air Vent 3/8 Inch 87161084970

The Worcester Bosch 87161084970 is an automatic air vent with a 3/8 inch connection. It is a Worcester Bosch spare part for the Camray 5 oil-fired boiler family, where it sits at a high point in the water circuit and discharges trapped air automatically rather than relying on manual bleeding. Keeping air out of the system protects circulation and helps the appliance run without air-related noise or lockouts.

• Water weeping or dripping from the vent body or its outlet
• Air still circulating after the vent is fitted, giving gurgling or rushing noises in the boiler
• The system needing repeated bleeding, or radiators drawing air at the top
• Scale, sludge or corrosion deposits around the vent seat or outlet
• The appliance overheating or locking out because air is trapped in the heat exchanger

• Confirm the appliance model against the compatibility list before ordering, using the serial number where it is available.
• Check the connection size and thread on the existing vent so the replacement matches the tapping.
• Cross-reference the alternative number 1021253 and the previous number BS61450 when checking older stock or paperwork.
• Isolate the appliance and drain the relevant section of the system before removing the old vent; work should be carried out by a competent person.