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Worcester Bosch Code Plug 1124 NG

Worcester Bosch

Worcester Bosch Code Plug 1124 NG

Code plug 1124 (NG) for Worcester Bosch Greenstar 18I System boilers, part number 87144311240.

At a glance

  • Appliance family: Greenstar 18I System
  • Also known as 1020877
Manufacturer part no.
87144311240
GC number
H75-722
Showing prices

£9.30

£7.75 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 code plug 1124 (NG) is a configuration plug used on Greenstar 18I System boilers. It is fitted to the appliance's control board to identify the boiler variant and gas type to the electronics. This is the NG (natural gas) version, part number 87144311240.

Signs this part needs replacing

  • Boiler fails to run correctly after a control board replacement
  • Fault codes relating to appliance identification or configuration
  • Boiler does not recognise the fitted appliance variant
  • Combustion settings do not match the installed gas type

Before you order

  • Confirm your appliance is a Worcester Greenstar 18I System model
  • Check whether your boiler is NG or LPG — this plug is the NG version
  • Note the code plug number currently fitted to your control board
  • Verify part number 87144311240 against your appliance's parts list

Not sure which part?

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