Potterton Gas Manifold Assembly 5142159

The gas manifold assembly is a Potterton component, supplied under part number 5142159. It is a gas-carrying manifold used on Potterton Commercial Sirius FS boiler appliances, distributing gas to the burner assembly. The part is listed by the manufacturer as Potterton Commercial and is classed as a boiler spare.

• Unstable or drifting burner pressures that cannot be set correctly at the manifold test point
• Uneven flame picture across the burner, suggesting restricted or inconsistent gas distribution
• A detectable gas smell or a failed tightness test traced to the manifold or its joints
• Visible corrosion, cracking or mechanical damage to the manifold body or its connections
• Whistling or unusual noise from the gas train under demand

• Confirm the boiler model against the fit list above, as the manifold is specific to the Sirius FS 400 and Sirius FS 525
• Check the part number 5142159 on the existing component or the appliance literature
• Verify the manifold connections and gas train layout on the appliance match the replacement before removal
• Gas-carrying components must be fitted and commissioned by a competent, registered engineer, with tightness testing after installation