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Thermocouple, Main Topaz type, T67-600/M10

Thermocouple

Thermocouple, Main Topaz type, T67-600/M10

M10 pilot thermocouple sold as a replacement type for the Main Topaz gas fire.

At a glance

  • Also known as 1700285
  • Isolate the gas supply and have a Gas Safe registered engineer carry out the replacement
Manufacturer part no.
T67-600/M10
Showing prices

£18.66

£15.55 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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

A gas pilot thermocouple with an M10 threaded connector, sold by the trade as a replacement type for the Main Topaz gas fire. It generates a small voltage from pilot flame heat to hold the flame-failure device open, cutting gas supply if the pilot goes out.

Signs this part needs replacing

  • Pilot light won't stay alight, or takes several attempts to hold in
  • Fire locks out and needs the ignition sequence repeated more often
  • The flame-failure device trips as soon as the control knob is released
  • Visible corrosion, discolouration or a kinked probe on the existing thermocouple

Before you order

  • Match the full part number printed on the thermocouple you are removing
  • Isolate the gas supply and have a Gas Safe registered engineer carry out the replacement

Not sure which part?

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