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Ariston Gas Valve 65116557

Ariston

Ariston Gas Valve 65116557

Ariston gas valve 65116557 for Alteas ONE NET and Genus ONE gas boiler ranges.

At a glance

  • Also known as 8903686
  • Fitting must be carried out by a Gas Safe registered engineer, with combustion analysis after replacement
Manufacturer part no.
65116557
Showing prices

£68.35

£56.96 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 65116557 is a gas valve used in Ariston Alteas ONE NET and Genus ONE gas boilers. It controls the flow of gas to the burner under the command of the appliance's electronic control, regulating delivery so combustion matches demand. It is a service component intended for fitting by a competent heating engineer.

Signs this part needs replacing

  • The boiler fails to light or repeatedly goes to lockout with no burner flame established
  • Flame is established then drops out shortly after ignition
  • Gas valve shows signs of leakage, corrosion or physical damage
  • Boiler output is erratic or will not modulate correctly despite correct gas inlet pressure
  • Fault code relating to gas valve or flame detection is logged by the appliance

Before you order

  • Confirm the appliance model against the rating plate, as several Alteas ONE NET and Genus ONE variants use this valve
  • Check the existing valve's part number matches 65116557 before ordering
  • Verify gas inlet pressure and the appliance's fault history first, as lockout symptoms can have other causes
  • Fitting must be carried out by a Gas Safe registered engineer, with combustion analysis after replacement

Not sure which part?

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