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Worcester Bosch Code Plug 1700 87144317000

Worcester Bosch

Worcester Bosch Code Plug 1700 87144317000

Code plug 1700 (NG) for Worcester Bosch Greenstar Highflow 440CDi gas boilers.

At a glance

  • Also known as 1020881
Manufacturer part no.
87144317000
GC number
H71-437
Showing prices

£2.64

£2.20 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 code plug 1700 (NG) is a small configuration plug fitted to Worcester Greenstar Highflow 440CDi boilers. It sets the appliance's stored configuration data so the control board recognises the correct appliance variant and gas type. It is supplied as the natural gas (NG) version of the 1700 code plug.

Signs this part needs replacing

  • The boiler fails to fire or repeatedly goes to lockout after board or plug work
  • Fault codes relating to appliance configuration or gas type appear on the display
  • The boiler runs but the control board does not recognise the correct appliance variant
  • The existing code plug is missing, damaged, or has corroded pins
  • The boiler has been converted between gas types and the plug does not match the supply

Before you order

  • Confirm your appliance model is a Worcester Greenstar Highflow 440CDi variant
  • Check the gas type of your installation — this plug is the NG version, not LPG
  • Read the code plug number currently fitted and match it to 1700 before ordering
  • Check the GC number on the appliance data badge against your model's parts list

Not sure which part?

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