Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Broag Thermocouple Q309A L=600 20404

Broag

Broag Thermocouple Q309A L=600 20404

Broag thermocouple type Q309A with a 600 mm length, listed as a spare part for Broag Commercial boilers.

At a glance

  • Also known as 1134615
Manufacturer part no.
20404
Showing prices

£30.10

£25.08 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 thermocouple Q309A is a flame-sensing thermocouple supplied as a Broag Commercial boiler spare. It is listed with a length of 600 mm and carries the part number 20404. The thermocouple sits in the pilot flame path and generates the small voltage that holds the gas valve open while a flame is proven.

Before you order

  • Confirm the type reference Q309A on the existing thermocouple before ordering.
  • Check the required length against the 600 mm stated for this part.
  • Verify the part number 20404 against the appliance's own parts listing.
  • Check how the existing thermocouple is secured and routed so the replacement can be fitted the same way.

Not sure which part?

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