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Ideal Reed Switch Assembly 174819

Ideal

Ideal Reed Switch Assembly 174819

Ideal Reed Switch Assembly, part 174819, for Ideal Esprit HE24, HE30 and HE35 boilers and Ideal Commercial appliances; detects activation and flow changes.

At a glance

  • Part type: Switch
  • Also known as 1780148
Manufacturer part no.
174819
Showing prices

£67.70

£56.42 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 Reed Switch Assembly is a replacement switch for Ideal gas appliances, supplied under part number 174819. It detects activation and changes in flow within the appliance and passes that signal to the control system, so the boiler can run its sequence and respond to demand correctly. It is used across the Ideal Esprit HE range and on Ideal Commercial equipment.

Signs this part needs replacing

  • The appliance fails to fire, or fires only intermittently on a call for heat or hot water
  • Activation or flow is not registered by the control system, so the sequence stalls
  • Erratic running during demand, with the appliance dropping in and out
  • Fault codes relating to flow, fan or the ignition sequence
  • Repeated lockouts that clear on reset and then return

Before you order

  • Confirm your appliance model and GC number against the compatibility list before ordering.
  • Cross-reference the alternative part number 1780148 when checking against an existing component.

Not sure which part?

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