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Worcester Bosch Electrode Kit 8738902786

Worcester Bosch

Worcester Bosch Electrode Kit 8738902786

Worcester Bosch electrode kit 8738902786 for Greenstar 1000 Series GR1000W NG combi boilers.

At a glance

  • Appliance family: Greenstar 1000 Series GR1000W
  • Also known as 1038363
Manufacturer part no.
8738902786
Showing prices

£37.51

£31.26 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 electrode kit 8738902786 is a manufacturer ignition and flame sensing electrode assembly for Worcester Bosch Greenstar 1000 Series GR1000W combi boilers. It provides the spark for burner ignition and the flame signal used by the boiler's control to prove combustion. The kit is supplied by Worcester Bosch under part number 8738902786.

Signs this part needs replacing

  • Boiler fails to ignite, with no spark at the burner
  • Repeated lockouts shortly after the ignition sequence begins
  • Flame established then lost, with the boiler shutting down
  • Visible damage to the electrode tip, ceramic insulator or lead
  • Cracked or discoloured insulator causing spark tracking to earth

Before you order

  • Confirm the boiler model and GC number against the data badge before ordering
  • Check the existing electrode assembly for damage, erosion or cracked insulation
  • Isolate the electrical supply and gas before carrying out any work
  • Inspect the burner and combustion chamber condition while the appliance is open

Not sure which part?

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