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Johnson & Starley electrode, millivolt systems S00876

Johnson & Starley

Johnson & Starley electrode, millivolt systems S00876

Genuine Johnson & Starley electrode (S00876) for millivolt ignition State boilers, sensing the pilot flame to keep it alight.

At a glance

  • Also known as 1690710
  • Isolate the gas supply before removal; Gas Safe registered engineer required
Manufacturer part no.
S00876
Showing prices

£82.08

£68.40 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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

A replacement electrode for Johnson & Starley State boilers fitted with millivolt (non-electronic) ignition systems. It sits in the pilot flame to generate the signal the gas valve uses to keep the pilot alight.

Signs this part needs replacing

  • Pilot light will not stay lit, or keeps going out
  • Boiler locks out on ignition failure
  • Visible cracking, carbon build-up or corrosion on the electrode tip
  • Pilot flame is weak, yellow or lifts off the electrode

Before you order

  • Confirm your boiler uses a millivolt, not electronic, ignition system before ordering
  • Match the part number printed on your existing electrode
  • Isolate the gas supply before removal; Gas Safe registered engineer required

Not sure which part?

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