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Riello Control Box RBO522

Riello

Riello Control Box RBO522

Riello RBO522 control box for RL series oil burners, managing start-up, flame monitoring and lockout.

Manufacturer part no.
3003896
Showing prices

£281.71

£234.76 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 RBO522 is a control box for Riello oil burners. It governs the burner's operating sequence, covering start-up, flame monitoring and lockout. It is used across the Riello RL range of burners.

Signs this part needs replacing

  • Burner goes to lockout without firing
  • No ignition sequence on a call for heat
  • Repeated or intermittent lockouts
  • Burner starts then shuts down partway through the sequence
  • Control box fails to reset or shows no response

Before you order

  • Confirm your burner model and code against the fitment list
  • Check the existing control box is marked RBO522
  • Rule out the photo cell, ignition transformer and wiring before replacing the control box

Not sure which part?

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