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Worcester Bosch Printed Circuit Board Greenstar Highflow 87483005710

Worcester Bosch

Worcester Bosch Printed Circuit Board Greenstar Highflow 87483005710

At a glance

  • Part type: Printed circuit board (PCB)
  • Also known as WB87483005710, 1020403, N0897-1
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87483005710
GC number
H21-240
Showing prices

£428.21

£356.84 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 Worcester Bosch 87483005710 is a printed circuit board (PCB) used in Greenstar boilers. It acts as the control centre of the appliance, monitoring and regulating every process in the system through switches, thermostats and sensors. It also enforces the boiler's safety logic, shutting down functions when internal readings point to a fault such as high pressure or a low water level.

Signs this part needs replacing

  • The boiler fails to fire or does not respond when there is a call for heat.
  • The display is blank, flickering or showing fault codes that will not clear.
  • The appliance locks out repeatedly, or shuts down shortly after ignition.
  • Heating and hot water behave erratically, with the boiler ignoring thermostat or sensor inputs.
  • The pump, fan or other controlled components do not run when they should.

Before you order

  • Check the GC number and model on the boiler data badge against the compatibility list before ordering.
  • Confirm the board currently fitted carries the previous number 87483005070, as this part is the later replacement for that board.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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