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Baxi Connection Board - Wiring 7664034

Baxi

Baxi Connection Board - Wiring 7664034

Wiring connection board, part 7664034, for Baxi 224, 228, 424 and 428 ErP Combi boilers.

At a glance

  • Part type: connection board, wiring
  • Also known as 1132244, N8869
Manufacturer part no.
7664034
Showing prices

£68.14

£56.78 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 Baxi 7664034 is a wiring connection board used in Baxi ErP Combi boilers. It provides the electrical interface between the boiler's wiring harness and the control components, carrying signals and power around the appliance. It is fitted as part of the boiler's electrical assembly.

Signs this part needs replacing

  • The boiler fails to power up or shows no response when switched on
  • Intermittent faults or error codes that come and go with movement of the wiring
  • Visible scorching, discolouration or heat damage on the board
  • Loose, corroded or burnt connector terminals on the board
  • Components such as the fan or pump not receiving power despite a healthy supply to the boiler

Before you order

  • Confirm your boiler model against the fit list above before ordering
  • Check the part number printed on the existing board matches 7664034
  • Inspect the wiring harness and plugs for damage, as a faulty loom can mimic a board fault
  • Isolate the electrical supply to the boiler before removing or fitting any board

Not sure which part?

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