Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Ideal Immersion Sensor 154816

Ideal

Ideal Immersion Sensor 154816

Ideal 154816 immersion sensor for Ideal Commercial Concord CXA boilers, supplied singly as a direct replacement temperature sensor.

At a glance

  • Part type: Sensors and switches
  • Also known as 1177134, N7733
Manufacturer part no.
154816
Showing prices

£38.06

£31.72 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 Ideal 154816 is an immersion sensor used on Ideal Heating commercial boiler platforms. It sits in the water circuit and reports temperature back to the boiler control, which uses that signal to regulate firing and protect the appliance from overheating. It is listed by the manufacturer under the sensors and switches category and is supplied as a single unit.

Signs this part needs replacing

  • Boiler locks out or fails to fire despite a call for heat
  • Flow or return temperature readings that are clearly wrong or erratic
  • Overheat trips or repeated high-limit shutdowns
  • Short cycling, with the burner cutting in and out more often than normal
  • Fault codes logged against the temperature sensing circuit

Before you order

  • Check the appliance model and GC number against the compatibility list before ordering, as several Concord CXA variants use different sensor arrangements.
  • Confirm the number on the existing sensor matches 154816, or one of the alternative numbers listed below.
  • Isolate the electrical supply and drain down as required before removing the sensor; check whether a sealing washer is needed on refitting.
  • Work on the boiler should be carried out by a competent engineer.

Not sure which part?

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