Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Worcester Bosch Code Plug 1023 (31) 87144310230

Worcester Bosch

Worcester Bosch Code Plug 1023 (31) 87144310230

Worcester Bosch code plug 1023 (31), part 87144310230, for Greenstar 35CDi ErP Classic System boilers.

At a glance

  • Part type: Code plug
  • Also known as 1031397
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87144310230
GC number
J22-826
Showing prices

£25.44

£21.20 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 1023 (31) is a configuration component used in Greenstar 35CDi ErP Classic System boilers. It sets the appliance's operating parameters, ensuring the correct fuel type and model-specific settings are recognised by the control board. This part is identified by Worcester Bosch part number 87144310230.

Signs this part needs replacing

  • Boiler fails to fire or locks out intermittently.
  • Error codes relating to incorrect appliance configuration or fuel type.
  • Boiler operates with incorrect settings or performance issues.
  • The code plug is visibly damaged, corroded, or missing.

Before you order

  • Check the appliance GC number against the compatibility list to ensure correct fitment.
  • Confirm the alternative part number 1031397 matches your existing component.
  • 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.