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Ariston Sensor Reed 65114921-01

Ariston

Ariston Sensor Reed 65114921-01

Reed sensor, part 65114921-01, for selected Ariston ONE and NET series gas boilers.

At a glance

  • Part type: reed sensor
  • Also known as 8903717
  • Have the appliance isolated and, where required, the gas-carrying components worked on by a Gas Safe registered engineer.
Manufacturer part no.
65114921-01
Showing prices

£20.58

£17.15 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Ariston Sensor Reed 65114921-01 is a reed-type sensor used in Ariston gas boilers. It forms part of the appliance's sensing circuit, providing a switching signal to the control board in response to a magnetic field. It is listed for fitment across a number of Ariston ONE and NET series models.

Signs this part needs replacing

  • The boiler fails to respond when a hot water outlet is opened.
  • Hot water delivery is intermittent or cuts in and out during a draw-off.
  • The appliance reports a sensor-related fault or lockout.
  • The boiler runs but does not register demand from the sensing circuit.

Before you order

  • Confirm the model and GC number on the appliance data badge against the fit list above.
  • Check the existing sensor and its wiring connector for damage or contamination before condemning it.
  • Verify the fault is traced to the sensor rather than the control board or the associated magnet or actuator.
  • Have the appliance isolated and, where required, the gas-carrying components worked on by a Gas Safe registered engineer.

Not sure which part?

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