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Ariston Gas Valve SIT Sigma 0.848.072

Ariston

Ariston Gas Valve SIT Sigma 0.848.072

Gas valve for Ariston Ecocombi 27 MFFI and Ecosystem 27 RFFI boilers, using the SIT Sigma 0.848.072 valve.

At a glance

  • Part type: gas valve
  • Also known as 1576038
  • Gas valve work must be carried out by a Gas Safe registered engineer
Manufacturer part no.
65102822
Showing prices

£178.82

£149.02 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 gas valve uses the SIT Sigma 0.848.072 valve assembly and controls the supply of gas to the burner on Ariston Ecocombi 27 MFFI and Ecosystem 27 RFFI boilers. It opens and closes under the boiler's control to match gas delivery to heating and hot water demand. It is listed for both natural gas and LPG versions of these appliances.

Signs this part needs replacing

  • The boiler fails to ignite, or ignition is intermittent and ends in lockout
  • The burner lights and then goes out shortly after
  • No hot water or heating despite a call for heat from the controls
  • The valve is noisy in operation, or gas flow is erratic
  • A smell of gas around the valve body or its connections

Before you order

  • Check the model and GC number on the appliance rating plate against the fit list above
  • Confirm whether the boiler is natural gas or LPG, as both variants are listed
  • Compare the valve reference on the existing part with SIT Sigma 0.848.072
  • Gas valve work must be carried out by a Gas Safe registered engineer

Not sure which part?

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