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Worcester Bosch Code Plug 1017 87144310170

Worcester Bosch

Worcester Bosch Code Plug 1017 87144310170

Worcester Bosch 87144310170 code plug 1017 for Greenstar 42CDi and British Gas 542/i combi boilers; sets appliance configuration.

At a glance

  • Part type: Code plug
  • Also known as 1020864
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87144310170
GC number
H57-832
Showing prices

£4.79

£3.99 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 87144310170 is a code plug, marked 1017, used across a number of the manufacturer's Greenstar combi appliances. It is a small plug-in component that carries the configuration the boiler control reads at start-up, so the correct operating parameters are applied to the model it is fitted to. It is supplied as a single plug and is a direct replacement for the original item.

Signs this part needs replacing

  • The boiler fails to fire or locks out after the code plug has been disturbed or replaced
  • Fault codes relating to appliance configuration or fuel type appear at the control panel
  • The appliance runs with incorrect combustion settings following a fuel conversion
  • The plug body is cracked, heat-damaged or corroded, or sits loose on its pins
  • The boiler does not register the correct fuel type after a printed circuit board change

Before you order

  • Confirm the GC number on the appliance data badge matches one of the numbers listed above
  • Check the alternative number 1020864 against the part being removed
  • Confirm the code plug marking 1017 matches the item currently fitted
  • 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.