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Potterton Ionisation Electrode With Lead 5117275

Potterton

Potterton Ionisation Electrode With Lead 5117275

Ionisation electrode with lead for Potterton Promax HE and Promax Store 24 boilers and cylinders, part number 5117275.

At a glance

  • Part type: ionisation electrode
  • Also known as 1147106
Manufacturer part no.
5117275
Showing prices

£54.00

£45.00 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 ionisation electrode with lead (part number 5117275) is a flame sensing electrode used on Potterton Promax HE and Promax Store 24 appliances. It sits in the combustion path and signals the PCB when a flame is present, allowing the boiler to prove ignition and continue running. The electrode is supplied with its lead attached for connection back to the control board.

Signs this part needs replacing

  • Boiler locks out shortly after ignition or fails to prove flame
  • Repeated ignition lockouts with the burner lighting then extinguishing
  • Intermittent flame detection faults, often worse when the appliance is hot
  • Visible damage, cracking or heavy contamination on the electrode tip
  • Damaged or brittle insulation on the electrode lead

Before you order

  • Confirm the appliance model against the fit list above
  • Check the serial number and its AC or BC suffix, as fitment varies by build
  • Compare the existing electrode and lead against part number 5117275
  • Inspect the electrode tip and lead for contamination or damage before ordering

Not sure which part?

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