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Riello Air Pressure Sensor 3003891

Riello

Riello Air Pressure Sensor 3003891

Riello 3003891 air pressure sensor for Riello burner and boiler assemblies, listed in oil boiler and burner spares.

At a glance

  • Also known as 3200579
Manufacturer part no.
3003891
Showing prices

£21.02

£17.52 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 Riello 3003891 is an air pressure sensor for Riello burner and boiler assemblies. It is listed in oil boiler spares and Riello burner spares, where it is described as a connector. It forms part of the burner's air-pressure monitoring circuit.

Signs this part needs replacing

  • Burner locks out during or after the pre-purge.
  • Fan runs but the burner fails to reach flame.
  • Intermittent lockouts with no consistent fault pattern.
  • Air pressure fault indicated by the burner control box.
  • Combustion instability or repeated restart attempts.

Before you order

  • Check the burner or boiler model and code against the fitment list.
  • Confirm the existing part is marked 3003891 or matches the connector position.
  • Check the manufacturer's parts list if your model is not shown.
  • Verify the connection type and mounting arrangement before ordering.

Not sure which part?

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