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Worcester Bosch Fan P EBM D118 AC230 50 70 W PWM 8738903401

Worcester Bosch

Worcester Bosch Fan P EBM D118 AC230 50 70 W PWM 8738903401

Worcester Bosch combustion fan assembly, EBM D118, 230 V AC with PWM speed control.

At a glance

  • Appliance family: Worcester Greenstar 1000 Series
  • Also known as 1038339
Manufacturer part no.
8738903401
Showing prices

£162.35

£135.29 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

This is the Worcester Bosch fan assembly, listed as FAN P EBM D118 AC230 50 70 W PWM, part number 8738903401. It is the EBM D118 blower unit used on Worcester Greenstar 1000 Series appliances, running on a 230 V AC supply with PWM speed control. The fan draws combustion air in and drives flue gases out, and its speed signal is controlled by the boiler's PCB.

Signs this part needs replacing

  • The fan runs noisily, with bearing rumble, scraping or a rhythmic knocking that does not clear.
  • The fan fails to start, or starts and stops erratically during a demand for heat.
  • The boiler locks out or fails to establish a flame because the fan is not proving sufficient air movement.
  • Fan speed fluctuates or the appliance reports a fan-related fault code.
  • Visible damage, contamination or stiffness when the impeller is turned by hand.

Before you order

  • Confirm the appliance model and that the existing fan is marked EBM D118 with a 230 V AC supply.
  • Check the fan connector type and pin arrangement match the boiler's wiring harness.
  • Inspect the flue and air intake paths for blockages or debris before fitting a replacement fan.
  • Verify the part number 8738903401 against the rating plate data and any previous fan fitted.

Not sure which part?

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