Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Potterton NTC Added Cable 5141500

Potterton

Potterton NTC Added Cable 5141500

NTC added cable thermistor lead for Potterton Commercial Sirius 2 and Sirius 3 boilers.

Manufacturer part no.
5141500
Showing prices

£4.68

£3.90 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 added cable (part number 5141500) is a temperature sensing lead supplied by Potterton for its commercial boiler range. It forms part of the boiler's temperature monitoring circuit, carrying the NTC thermistor signal back to the control. It is used on Potterton Commercial Sirius 2 and Sirius 3 appliances.

Signs this part needs replacing

  • Boiler locks out or shuts down with a temperature-related fault code
  • Flow or return temperature readings that are erratic, implausible or absent
  • Overheating or cycling behaviour that does not match the set point
  • Visible damage to the cable, insulation or connector
  • Sensor resistance readings that fall outside the expected range for the measured temperature

Before you order

  • Confirm the appliance model against the fitment list above before ordering
  • Check the existing cable routing and connector type at the sensor and control board
  • Inspect the thermistor itself for damage, as the fault may lie with the sensor rather than the lead

Not sure which part?

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