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Johnson & Starley Ignition Lead 1000-0705400

Johnson & Starley

Johnson & Starley Ignition Lead 1000-0705400

Ignition lead for Johnson & Starley Hispec and Jb25PB warm air units and Janus water heaters, carrying the spark to the burner.

At a glance

  • Part type: ignition lead
  • Also known as 1690090
Manufacturer part no.
1000-0705400
GC number
E05-999
Showing prices

£6.59

£5.49 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 Johnson & Starley ignition lead is a spark lead used on the manufacturer's Hispec and Jb25PB warm air units and Janus water heaters. It carries the high-voltage spark from the ignition source to the burner electrode so the appliance can light. It is listed under part number 1000-0705400.

Signs this part needs replacing

  • The appliance fails to light or locks out with no spark at the burner
  • Ignition is intermittent, with the burner lighting on some attempts only
  • The lead insulation is cracked, brittle or shows heat damage
  • Arcing or tracking marks are visible at the electrode or ignition end of the lead
  • The spark jumps to earth rather than at the electrode

Before you order

  • Confirm the appliance model and GC number against the fitment list above
  • Check the connectors and routing on the failed lead match the new lead before fitting
  • Inspect the electrode and ignition source at the same time, as a fault there can mimic a failed lead

Not sure which part?

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