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Potterton Spark Electrode Lead 5142148

Potterton

Potterton Spark Electrode Lead 5142148

Spark electrode lead (5142148) for Potterton Commercial Sirius FS 400 and FS 525 gas boilers.

Manufacturer part no.
5142148
Showing prices

£152.40

£127.00 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 spark electrode lead is a Potterton ignition component that carries the high-voltage spark from the ignition source to the spark electrode on Potterton Commercial gas boilers. It is listed under the manufacturer part number 5142148 and is used on the Potterton Commercial Sirius FS range. Its role is to deliver a reliable spark at the burner so the boiler can ignite cleanly on a call for heat.

Signs this part needs replacing

  • Boiler fails to ignite and locks out on repeated ignition attempts
  • No visible spark at the electrode when the boiler calls for heat
  • Cracked, brittle or heat-damaged insulation along the lead
  • Spark tracking or arcing to earth rather than at the electrode tip
  • Intermittent ignition, with the boiler firing only occasionally

Before you order

  • Confirm the appliance is a Potterton Commercial Sirius FS 400 or FS 525
  • Check the condition and connection of the existing lead and electrode before ordering
  • Inspect the spark electrode itself, as a worn electrode tip can imitate a lead fault
  • Isolate the electrical supply and gas before carrying out any work

Not sure which part?

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