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Broag Flame Detection Probe 720397601

Broag

Broag Flame Detection Probe 720397601

Flame detection probe, part 720397601, for Broag commercial gas boilers.

At a glance

  • Also known as 2203878
Manufacturer part no.
720397601
Showing prices

£111.16

£92.63 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 Broag flame detection probe, part number 720397601, is a sensing component used in Broag commercial gas boilers. It monitors the presence of a flame at the burner and signals the boiler control to maintain or interrupt the gas supply accordingly.

Signs this part needs replacing

  • Boiler locks out shortly after ignition or fails to fire at all
  • Repeated flame failure faults or lockout codes
  • Burner lights then shuts down during the ignition sequence
  • Boiler only runs after several reset attempts
  • No flame signal registered even though the burner has lit

Before you order

  • Confirm the part number 720397601 matches the number on the existing probe or the manufacturer's parts list
  • Check the appliance model against Broag's commercial spare parts documentation
  • Inspect the probe and its lead for contamination, cracking or damaged insulation before ordering

Not sure which part?

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