Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Ariston Motor 3 Way Valve 570711

Ariston

Ariston Motor 3 Way Valve 570711

Motorised three-way diverter valve head for Ariston Genus 27 BFFI UK and DIA System 27 RFFI gas boilers, part 570711.

At a glance

  • Also known as 1572784
Manufacturer part no.
570711
Showing prices

£157.28

£131.07 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 motorised three-way diverter valve head (actuator) is an Ariston component, part number 570711. It drives the diverter valve that switches boiler output between central heating and domestic hot water on Ariston Genus 27 BFFI UK and DIA System 27 RFFI appliances.

Signs this part needs replacing

  • The boiler runs central heating but delivers no domestic hot water, or hot water only.
  • The actuator does not move when the boiler changes between heating and hot water modes.
  • The heating circuit warms when only hot water is demanded, or the reverse.
  • Signs of water ingress, overheating or burning at the actuator housing.
  • The boiler locks out or flags a diverter valve fault.

Before you order

  • Confirm your appliance model appears in the Fits list above.
  • On Genus 27 BFFI UK, check the boiler serial number falls within the ranges shown.
  • Establish whether the fault lies with the valve head or the valve body before ordering.
  • Note the part number on the existing actuator, where visible, and compare it with 570711.

Not sure which part?

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