Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hamworthy Control PCB Siemens LMU 64 533901452

Hamworthy

Hamworthy Control PCB Siemens LMU 64 533901452

Control PCB for Hamworthy Modumax 125C floor standing boilers, using the Siemens LMU 64 platform.

At a glance

  • Also known as 2064348
Manufacturer part no.
533901452
Showing prices

£426.50

£355.42 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

This is a Hamworthy control PCB (printed circuit board) for the Siemens LMU 64 platform. It is the main control board for the appliance. The Hamworthy part number is 533901452.

Signs this part needs replacing

  • Boiler fails to fire or locks out repeatedly.
  • No display or intermittent display on the control panel.
  • Error codes relating to PCB or flame supervision.
  • Boiler operates erratically or not at all.
  • Fan or pump not running when demanded.

Before you order

  • Check the boiler model and serial number against the manufacturer's parts list.
  • Confirm the existing PCB part number matches 533901452.
  • Note any error codes displayed before removing the old PCB.
  • Isolate the electrical supply before fitting.

Not sure which part?

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