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Ideal Wiring Harness Mex HE 30 36 180509

Ideal

Ideal Wiring Harness Mex HE 30 36 180509

Wiring harness for Ideal Mexico HE 30 and HE 36 boilers, part 180509, carrying the boiler's internal electrical connections.

At a glance

  • Part type: Wiring harness
  • Appliance family: Mexico HE
  • Also known as 1777757
Manufacturer part no.
180509
Showing prices

£216.88

£180.73 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 180509 is a wiring harness supplied for Ideal Mexico HE boilers. It forms the electrical link between the boiler's control components, carrying low-voltage signals and mains supply between the PCB, fan, gas valve and associated safety devices. The harness is a direct replacement item for the Mexico HE 30 and HE 36 models and is also listed against Ideal commercial parts.

Signs this part needs replacing

  • The boiler locks out or fails to fire intermittently, with the fault returning after a reset.
  • Insulation on the loom is cracked, brittle or heat-damaged, exposing conductors.
  • Connectors are loose, corroded or show signs of arcing or discoloured terminals.
  • Fault codes relating to fan, gas valve or PCB communication appear and clear when the loom is moved.
  • Rodent damage or chafing where the harness passes through the casing or against sharp edges.

Before you order

  • Check the GC number on the appliance data badge against the compatibility list to confirm the correct model variant.
  • Confirm the number on the existing harness matches 180509, or that the earlier number 174138 is fitted, before ordering.
  • Isolate the electrical supply at the fused spur and prove dead before removing or refitting the harness.
  • Inspect the connectors and any associated seals or grommets at the same time, as these are often disturbed during replacement.

Not sure which part?

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