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Worcester Bosch Printed Circuit Board 8748300922

Worcester Bosch

Worcester Bosch Printed Circuit Board 8748300922

At a glance

  • Part type: Printed Circuit Boards (PCB)
  • Also known as WB8748300922, 1038190
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8748300922
GC number
J08-366
Showing prices

£137.00

£114.17 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 8748300922 is a printed circuit board (PCB) supplied for Worcester Bosch Greenstar Junior appliances. It is the electronic control board for the unit, carrying out a key function in the appliance's operating sequence and supporting reliable, consistent performance. The board is listed under Worcester Bosch spare part type Printed Circuit Boards (PCB) and is used across the Greenstar Junior MK5 and Greenstar Junior Combi ranges.

Signs this part needs replacing

  • The boiler fails to respond when a demand for heating or hot water is made.
  • The appliance locks out repeatedly or will not complete its ignition sequence.
  • The display is blank, flickering or showing inconsistent information.
  • The fan, pump or other controlled components do not run when expected.
  • Operation becomes erratic, with the boiler cutting in and out without a clear cause.

Before you order

  • Check the GC number and model plate on the appliance against the compatibility list above before ordering.
  • Compare the part number on the board currently fitted with the alternative and previous numbers listed below, as more than one board has been used across this range.
  • 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.