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Riello Electrode Assembly 3005721

Riello

Riello Electrode Assembly 3005721

Riello electrode assembly 3005721 for Riello oil burner units, used to produce the ignition spark at the burner nozzle.

At a glance

  • Part type: electrode assembly
Manufacturer part no.
3005721
Showing prices

£27.98

£23.32 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 3005721 is an electrode assembly for Riello oil burners. It forms part of the ignition circuit, generating the spark that lights the oil and air mixture at the burner head. It is listed within oil boiler spares for Riello burner applications.

Signs this part needs replacing

  • Burner fails to ignite and locks out on start-up
  • No visible spark at the electrode tips during a test fire
  • Electrode tips are eroded, rounded or heavily carboned
  • Ceramic insulation is cracked, chipped or discoloured
  • Intermittent ignition with the burner firing only on some attempts

Before you order

  • Confirm the burner model and code against the fit list above
  • Check the electrode position and mounting arrangement on the existing burner
  • Inspect the electrode leads and transformer terminals for damage before replacing
  • Verify the part number 3005721 on the existing electrode assembly where legible

Not sure which part?

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