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Worcester Bosch Printed Circuit Board 8733704090

Worcester Bosch

Worcester Bosch Printed Circuit Board 8733704090

Printed circuit board for Worcester Bosch Greensource air/water heat pumps, additional heat board with emergency operation, version V2.20.

At a glance

  • Also known as 2247181
Manufacturer part no.
8733704090
Showing prices

£620.72

£517.27 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 8733704090 is a printed circuit board (PCB) for the additional heat board with emergency operation, version V2.20. It is used in Worcester Greensource air/water heat pumps. The board provides the additional heat and emergency operation functions within the heat pump system.

Signs this part needs replacing

  • The heat pump displays a fault relating to the additional heat board or emergency operation
  • Additional heat does not activate when the system calls for it
  • Emergency operation mode fails to engage
  • Visible damage to the board, such as burn marks, corrosion, or swollen components
  • The heat pump repeatedly locks out or fails to run

Before you order

  • Confirm your appliance is one of the Worcester Greensource models listed above
  • Check the existing board's part number and version (V2.20) match this item
  • Ensure fault diagnosis points to the additional heat board rather than another component
  • PCB replacement should be carried out by a competent person

Not sure which part?

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