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Worcester Bosch Control Board Assembly CDi Series 87483004300

Worcester Bosch

Worcester Bosch Control Board Assembly CDi Series 87483004300

Worcester Bosch control board assembly 87483004300, the printed circuit board for CDi Series boilers, monitoring and controlling boiler processes and safety shutdowns.

At a glance

  • Part type: Printed circuit board / control board assembly
  • Appliance family: CDi Series
  • Also known as 1020373, N7943
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87483004300
GC number
E80-463
Showing prices

£458.60

£382.17 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 control board assembly, part 87483004300, is the printed circuit board that acts as the control centre of a CDi Series boiler. It monitors and regulates every process in the system through switches, thermostats and sensors, and it enforces safety measures by shutting down boiler functions when internal readings indicate a fault, such as high pressure or low water levels.

Signs this part needs replacing

  • The boiler locks out or fails to fire
  • A blank, dim or erratic display on the control panel
  • Fault or error codes appearing repeatedly
  • The boiler runs intermittently or stops responding to thermostat calls
  • Safety shutdowns triggered without an obvious external cause

Before you order

  • Check the GC number and serial plate on the appliance to confirm the board is correct for the model.
  • Cross-reference the alternative part numbers N7943 and 1020373 against the board being removed.
  • 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.