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Worcester Bosch Printed Circuit Board RI 87483008550

Worcester Bosch

Worcester Bosch Printed Circuit Board RI 87483008550

Worcester Bosch PCB RI, part 87483008550, the main control board for Worcester Bosch boilers; replaces 87186871640, 87161063990 and 8716119385.

At a glance

  • Part type: printed circuit board (PCB RI)
  • Also known as 87161063990, 87186871640, WB87483008550, 1022889
Manufacturer part no.
87483008550
Showing prices

£84.31

£70.26 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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 PCB RI is the main printed circuit board fitted to a number of Worcester Bosch gas boilers. It carries the boiler's control electronics, running the ignition sequence, fan and pump outputs, and reading the temperature sensors and safety inputs that keep the appliance operating within its limits. This replacement board is supplied under Worcester Bosch part number 87483008550 and covers the earlier board numbers 87186871640, 87161063990 and 8716119385.

Signs this part needs replacing

  • The boiler fails to fire, or locks out with no fault found elsewhere in the ignition or gas train
  • A blank, flickering or unresponsive control panel display
  • Lockout codes that clear on reset and then return
  • The fan, pump or ignition sequence does not start when there is a call for heat
  • Erratic behaviour from the boiler controls, or the appliance responding intermittently to demand

Before you order

  • Read the part number from the board currently fitted and match it against 87483008550 or the numbers it replaces
  • Check the boiler model and GC number on the appliance data plate against the compatibility information
  • Boards are model-specific, so a board from a different boiler variant may not run the appliance correctly
  • Isolate the electrical supply before removing or refitting the board

Not sure which part?

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