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Potterton Ionisation Electrode Lead 5142139

Potterton

Potterton Ionisation Electrode Lead 5142139

Potterton 5142139 ionisation electrode lead, an HT lead for flame sensing on Potterton Commercial Sirius FS boilers.

At a glance

  • Part type: HT lead
Manufacturer part no.
5142139
Showing prices

£136.80

£114.00 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 Potterton 5142139 ionisation electrode lead is an HT lead, classed as a high tension lead within the Potterton range. It connects the ionisation electrode to the boiler's control circuit, allowing the appliance to confirm that the burner flame is present.

Before you order

  • Confirm your boiler is a Potterton Commercial Sirius FS 400 or Sirius FS 525 by checking the model badge on the appliance.
  • Check that the existing lead is the ionisation lead and not the ignition lead before ordering, as the two parts serve different functions.
  • Make sure the part number 5142139 matches the number printed on the old lead or the appliance documentation.

Not sure which part?

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