Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Baxi Printed Circuit Board Promax 24HE 5106588

Baxi

Baxi Printed Circuit Board Promax 24HE 5106588

Baxi Promax 24HE printed circuit board (5106588) that monitors boiler processes and enforces safety shutdowns; fits 3 Baxi and Potterton models.

At a glance

  • Part type: Printed circuit board (PCB), electronics and controls
  • Also known as 1117520
Manufacturer part no.
5106588
Showing prices

£324.00

£270.00 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 5106588 is a printed circuit board (PCB) that acts as the electronic control centre of a Promax 24HE boiler. It monitors and controls the processes running through the system using switches, thermostats and sensors, and it enforces safety by shutting the boiler down when internal readings point to a fault such as excessive pressure or a low water level. It is supplied by Baxi as a single replacement board for the Promax 24HE family.

Signs this part needs replacing

  • The boiler locks out or fails to fire, with no response to a call for heat or hot water.
  • Fault or error codes appear on the boiler display and cannot be cleared by a reset.
  • The boiler runs intermittently, cutting out part-way through a cycle.
  • The appliance shuts down on a safety trip linked to pressure or water level readings.
  • Switches, thermostats or sensors connected to the board stop being recognised or acted upon.

Before you order

  • Confirm the GC number and model on the boiler data badge against the compatibility list, as the board is specific to the Promax 24HE.
  • Note the alternative part number 1117520 when cross-referencing an existing board or an older order.
  • Check whether any seals or gaskets disturbed during access need replacing 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.