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Worcester Bosch Code Plug 1134 NG 87144311340

Worcester Bosch

Worcester Bosch Code Plug 1134 NG 87144311340

Worcester Bosch 87144311340 code plug 1134 NG for Greenstar 24i Junior MK5 and 24i Junior Combi models, natural gas configuration.

At a glance

  • Part type: Code plug
  • Appliance family: Greenstar 24i Junior MK5 and 24i Junior Combi
  • Also known as 2243845
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87144311340
GC number
J08-371
Showing prices

£10.54

£8.78 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 87144311340 is a code plug supplied for the Greenstar 24i Junior range. It carries the appliance configuration data that the boiler control board reads on start-up, so the plug fitted must match the fuel type the appliance is set up to run on. This version is the 1134 NG plug, intended for natural gas appliances in the Greenstar 24i Junior MK5 and 24i Junior Combi families.

Signs this part needs replacing

  • The boiler fails to fire or drops into lockout shortly after the call for heat.
  • Combustion readings sit outside the expected range for the appliance and cannot be corrected by adjustment.
  • The control board reports a configuration or fuel-related fault code.
  • The plug body is cracked, heat-damaged or its contacts are corroded or loose in the board header.
  • A replacement board has been fitted and the original plug no longer matches the appliance configuration.

Before you order

  • Confirm the model and GC number against the compatibility list, and check whether the appliance is natural gas or LPG before selecting a plug.
  • Quote the alternative number 2243845 if your parts listing uses it.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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