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Ideal Wiring Harness 175423

Ideal

Ideal Wiring Harness 175423

Ideal 175423 boiler wiring harness for Esprit 2 and Evo HE models, linking the PCB to fans, sensors and valves. Alternative number 1780895.

At a glance

  • Part type: Wiring harness (cables, leads and wiring harnesses)
  • Also known as 1780895
Manufacturer part no.
175423
Showing prices

£49.21

£41.01 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 175423 is a boiler wiring harness — a pre-formed loom of cables and moulded connectors that carries power and control signals between the appliance's main PCB and its components, including the fan, gas valve, pump and sensors. It is produced by Ideal for the Esprit 2 and Evo HE families. Because the loom is supplied as a complete assembly, a damaged or corroded harness can be swapped out at the connector points rather than rewiring the boiler by hand.

Signs this part needs replacing

  • The boiler fails to fire or locks out intermittently with no clear fault at any single component
  • Fault codes appear and clear again, or change when the loom is disturbed
  • Insulation is chafed, brittle or hardened by heat, particularly near the heat exchanger or fan
  • Connector pins are loose, corroded, discoloured or show signs of arcing
  • Components such as the fan or pump run erratically or cut in and out

Before you order

  • Check the GC number on the appliance data badge against the compatibility list to confirm the harness suits your model
  • Compare the part number on the existing loom with 175423 and 1780895 before ordering
  • Isolate the electrical supply at the fused spur and allow the boiler to cool before removing the old harness

Not sure which part?

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