Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Worcester Bosch Control Board Highflow 400 87161023390

Worcester Bosch

Worcester Bosch Control Board Highflow 400 87161023390

At a glance

  • Part type: Printed circuit board (control board)
  • Also known as 1013829, N0521
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161023390
GC number
E82-392
Showing prices

£226.20

£188.50 ex. VAT · VAT at 20%

In stock
Order within 5m for same-day dispatch
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 87161023390 is a replacement main control board for the Worcester Highflow 400 Electronic range. It is the printed circuit board that carries the appliance's electronic control functions, sitting behind the fascia and connecting to the wiring harness, sensors and user controls. Boards of this type are replaced when the original has failed electronically rather than mechanically, and the part is supplied as a straight swap for the board carrying the same part number.

Signs this part needs replacing

  • The appliance fails to fire, or the control panel gives no response when the appliance is called for heat or hot water.
  • Repeated lockouts or fault codes that clear only briefly before returning.
  • Erratic behaviour from the fan, pump or ignition sequence that does not trace back to a sensor or wiring fault.
  • A blank or partially lit display, or buttons that no longer register.
  • Visible heat damage, corrosion or moisture tracking on the board itself.

Before you order

  • Check the GC number and the appliance data plate against the compatibility list to confirm the model match.
  • Cross-check the alternative part numbers below against the markings on 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.