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Potterton PCB Complete FS50 5142460

Potterton

Potterton PCB Complete FS50 5142460

Potterton Commercial printed circuit board (FS50) for Sirius 2 and Sirius 3 boilers, part 5142460.

Manufacturer part no.
5142460
Showing prices

£237.60

£198.00 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 Potterton PCB (FS50) is the printed circuit board assembly used on Potterton Commercial Sirius 2 and Sirius 3 boilers. It carries the control electronics that govern boiler sequencing, ignition and safety interlocks. This is the complete board, part number 5142460.

Signs this part needs replacing

  • The boiler locks out repeatedly or fails to reach ignition
  • No response from the controls, or the display stays blank
  • Fan, pump or burner sequencing behaves erratically
  • The board fuse blows again after replacement
  • Visible heat damage, scorching or track failure on the PCB

Before you order

  • Confirm the boiler model against the fitment list before ordering
  • Check the part number on the existing board matches 5142460
  • Note the connector layout and wiring order before removing the old board
  • Isolate the electrical supply and follow the manufacturer's instructions for board removal

Not sure which part?

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