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Baxi Printed Circuit Board Kit 720086101

Baxi

Baxi Printed Circuit Board Kit 720086101

Baxi printed circuit board kit, part number 720086101, for the System 18 HE LPG boiler.

At a glance

  • Appliance family: System 18 HE LPG
  • Also known as 1118454, N5085-1
Manufacturer part no.
720086101
Showing prices

£174.24

£145.20 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 Baxi 720086101 is a printed circuit board kit intended for the Baxi System 18 HE LPG boiler. The PCB is the control board that governs boiler sequencing, firing and safety monitoring. It is supplied as a kit for service replacement on this appliance family.

Signs this part needs replacing

  • The boiler will not fire or does not respond when there is a demand for heat.
  • No display, no indicator illumination or a complete loss of power at the control panel.
  • Repeated lockouts that cannot be cleared by a normal reset.
  • Intermittent or erratic operation, such as random shutdowns or unstable firing.
  • Fault codes logged on the appliance that point to the control board.

Before you order

  • Confirm the appliance model is the Baxi System 18 HE LPG variant.
  • Check the part number printed on the existing board against 720086101.
  • Confirm the boiler is running on LPG, as this board is specified for that fuel type.
  • Isolate the electrical supply before removing or fitting any control board.

Not sure which part?

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