Ferroli Optimax Boiler Auto Air Vent 39818220

Product Overview

The Ferroli Optimax Boiler Auto Air Vent 39818220 is a replacement hydraulic component designed for use within selected Ferroli heating systems.

The automatic air vent (AAV) is an important part of the boiler's hydraulic circuit. It automatically releases trapped air from the heating system, helping to maintain efficient water circulation, reduce system noise, and prevent airlocks that can affect boiler performance. A correctly functioning AAV supports reliable operation and helps protect the heating system from issues caused by trapped air.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please check the available options from the dropdown menu.

Technical Insight & Common Failure Symptoms

During normal operation, small amounts of air can accumulate within the boiler's hydraulic system. The automatic air vent is designed to release this trapped air automatically, helping maintain correct water flow and system efficiency. Over time, the air vent may become blocked, leak, or fail due to wear, debris, or internal seal deterioration.

Typical symptoms linked to a faulty automatic air vent include:

• Water leaking from the air vent
• Air trapped within the heating system
• Gurgling or bubbling noises from the boiler or radiators
• Poor circulation or reduced heating performance
• Frequent need to bleed radiators
• Heating system operating inefficiently due to trapped air

Replacing a faulty automatic air vent may help restore correct circulation, improve system efficiency, and reduce air-related heating issues.

Compatibility

Manufacturer Part Number (MPN): 39818220

This part is designed for selected models within the Ferroli Optimax range and other compatible Ferroli boilers.

Please strictly verify the manufacturer part number 39818220 against your boiler's technical manual, exploded parts diagram, or existing component before ordering to guarantee correct fitment.

Safety Advice

Boiler hydraulic components involve water pressure and internal heating system assemblies. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions.