Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Potterton NTC Sensor Flue Thermo Wiring 7660974

Potterton

Potterton NTC Sensor Flue Thermo Wiring 7660974

NTC flue thermistor sensor with wiring for Potterton Commercial Sirius 2 and Sirius 3 boilers.

At a glance

  • Appliance family: Potterton Commercial Sirius 2 and Sirius 3
Manufacturer part no.
7660974
Showing prices

£21.60

£18.00 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 NTC Sensor-Flue Thermo Wiring is a flue thermistor assembly supplied by Potterton for use on Potterton Commercial Sirius boilers. The NTC sensing element monitors flue temperature and connects to the boiler control via its attached wiring loom. It forms part of the boiler's temperature monitoring and safety circuit.

Signs this part needs replacing

  • Boiler locks out or shuts down during or shortly after firing
  • Flue overheat fault indicated at the boiler controls
  • Resistance reading from the sensor falls outside the expected range for the flue temperature
  • Intermittent or unstable flue temperature readings
  • Visible damage, corrosion or brittleness at the sensor probe or its wiring

Before you order

  • Confirm the boiler model and variant against the fitment list above
  • Check the existing sensor's wiring connector and lead length match the part being ordered
  • Verify the part number 7660974 on the boiler's data badge or within the manufacturer's documentation for that appliance
  • Inspect the flue and sensor mounting point for damage before fitting

Not sure which part?

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