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Baxi Pump Cable 7811858

Baxi

Baxi Pump Cable 7811858

Baxi pump cable, part number 7811858, for Aquaheat Hi and HWI appliances.

At a glance

  • Part type: pump cable
  • Appliance family: Aquaheat Hi / HWI
  • Also known as 1129400
Manufacturer part no.
7811858
Showing prices

£42.59

£35.49 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Baxi 7811858 is a pump cable supplied by Baxi for use in Aquaheat Hi and HWI appliances. It provides the electrical connection between the appliance's control arrangement and the circulating pump. It is a service part intended for replacement where the existing pump wiring has failed.

Signs this part needs replacing

  • The pump does not run when the appliance calls for heating or hot water.
  • Pump operation is intermittent, with the pump cutting in and out without a control fault.
  • Insulation on the cable is cracked, brittle, scorched or otherwise heat-damaged.
  • Connector terminals are loose, corroded or show signs of arcing or discolouration.
  • Continuity cannot be maintained through the cable when tested.

Before you order

  • Confirm your appliance model against the fit list above before ordering.
  • Check the connector type and terminal arrangement on the existing cable match the replacement.
  • Isolate the electrical supply to the appliance before removing or fitting any wiring.

Not sure which part?

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