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Broag Plug Ionisation 720402601

Broag

Broag Plug Ionisation 720402601

Ionisation plug, part 720402601, for Broag Commercial boiler spares.

At a glance

  • Part type: plug ionisation
  • Also known as 2203940
Manufacturer part no.
720402601
Showing prices

£43.78

£36.48 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 plug ionisation is a flame sensing component used on Broag Commercial boilers. It sits in the combustion path and provides the flame signal the control board needs to confirm ignition and keep the burner running. This is the Broag part numbered 720402601.

Signs this part needs replacing

  • The boiler locks out shortly after ignition or fails to prove flame
  • Repeated flame failure faults on the control display
  • Intermittent running, with the burner cutting out during a demand
  • Ignition appears to occur but the boiler does not stay lit
  • Visible damage, heavy contamination or a degraded connector at the ionisation plug

Before you order

  • Confirm your appliance model against the manufacturer's parts list
  • Check the part number on the existing component matches 720402601
  • Inspect the lead and connector for heat damage or poor contact before replacing
  • Verify the fault is flame sensing related and not a gas or ignition fault

Not sure which part?

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