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Johnson & Starley Spillage Switch S00856

Johnson & Starley

Johnson & Starley Spillage Switch S00856

Spillage switch for Johnson & Starley appliances, part number S00856, which detects flue product spillage and interrupts the gas supply.

At a glance

  • Also known as 1690459
  • Spillage switches are safety-critical components and should be fitted and tested by a competent Gas Safe registered engineer.
Manufacturer part no.
S00856
Showing prices

£41.76

£34.80 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

The Johnson & Starley spillage switch is a safety device used on Johnson & Starley appliances. It monitors for spillage of flue products and interrupts the gas supply to the burner when spillage is detected. It is supplied under part number S00856.

Before you order

  • Confirm that S00856 matches the part number shown on the existing switch or in the appliance documentation.
  • Check the appliance model details against the manufacturer's literature before ordering.
  • Spillage switches are safety-critical components and should be fitted and tested by a competent 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.