Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Worcester Bosch Code Plug Low NOx NG 25kW 8716122395

Worcester Bosch

Worcester Bosch Code Plug Low NOx NG 25kW 8716122395

Low NOx NG 25kW code plug for Worcester Bosch Greenstar 4000 Combi GR4700iW 25 C NG boilers; alternative number 8922958.

At a glance

  • Part type: code plug
  • Also known as 20234, 8922958
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8716122395
Showing prices

£12.19

£10.16 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 8716122395 is a code plug for the Greenstar range of gas boilers. It sits on the appliance control board and carries the configuration the board reads at start-up, setting the fuel type and heat output the boiler is commissioned for. This version is set for low NOx natural gas operation at 25kW, so it must match the model and fuel it is going into.

The plug is a small, easily replaced item and is normally swapped when a board is changed or when the plug itself is damaged at the connector.

Signs this part needs replacing

  • The boiler fails to fire or locks out after a control board or code plug change
  • Combustion readings sit outside the range expected for the appliance
  • Configuration or ignition related fault codes appear on the display
  • The appliance does not run at its stated output rating
  • The plug is cracked, corroded, or loose on the board connector

Before you order

  • Check the GC number on the appliance data badge against the compatibility list below before ordering.
  • Confirm the number on the existing plug; 8922958 is listed as an alternative for this part.
  • 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.