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Ariston By-Pass Body 572728

Ariston

Ariston By-Pass Body 572728

Ariston 572728 by-pass body for the main flow switch on Genus 27 BFFI UK gas boilers.

At a glance

  • Appliance family: Genus 27 BFFI UK
  • Also known as 1573158
Manufacturer part no.
572728
Showing prices

£77.77

£64.81 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Ariston 572728 by-pass body is a hydraulic component that carries the main flow switch on Ariston Genus 27 BFFI UK gas boilers. It forms part of the boiler's water circuit, providing the housing and flow path that the main flow switch sits in. It is a manufacturer part specific to the Genus 27 BFFI UK range.

Signs this part needs replacing

  • The boiler fails to detect flow and will not fire or locks out during a demand
  • Intermittent hot water or heating operation traced to the main flow switch housing
  • Water weeping or staining around the by-pass body or flow switch area
  • Debris or scale build-up inside the by-pass body restricting flow through the switch
  • The flow switch no longer seats or seals correctly in the body

Before you order

  • Confirm your boiler is a Genus 27 BFFI UK and match the serial number against the ranges listed above
  • Identify whether your appliance is an NG or LPG edition and which edition version it is
  • Check the existing part number and the by-pass body against the main flow switch arrangement before removing it
  • Isolate the water and gas supplies and depressurise the boiler before any work

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.