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Baxi Wiring Harness Low Voltage 5113481

Baxi

Baxi Wiring Harness Low Voltage 5113481

Low voltage wiring harness, part 5113481, for selected Baxi and Potterton 15kW gas boilers.

At a glance

  • Also known as 1123810
Manufacturer part no.
5113481
GC number
H51-229
Showing prices

£51.11

£42.59 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

This is a low voltage wiring harness, part number 5113481, used across a range of Baxi and Potterton 15kW gas boilers. It carries low voltage signals between the boiler's control components, so the appliance's electronics can communicate and sequence correctly. It is a plug-in loom rather than a mains voltage lead.

Signs this part needs replacing

  • Boiler intermittently fails to fire or drops out during a demand for heat
  • Fault codes relating to communication, sensing or control appear and clear at random
  • Connectors are corroded, loose, or show signs of heat damage or arcing
  • Loom insulation is chafed, cracked or brittle where it passes near hot components
  • Boiler responds erratically to the room thermostat or programmer

Before you order

  • Confirm your appliance model against the fit list above
  • On ErP models, check the serial number suffix (AC or BC) where stated
  • Check the existing harness part number and connector layout before removal
  • Inspect the loom routing and any clips or grommets that may need attention at the same time

Not sure which part?

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