Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hamworthy LMU64 Programmer 533901507

Hamworthy

Hamworthy LMU64 Programmer 533901507

Hamworthy LMU64 programmer, part number 533901507, for use with the WM110 NG boiler.

At a glance

  • Also known as 2064356
Manufacturer part no.
533901507
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

The Hamworthy LMU64 is a boiler programmer and control unit supplied under part number 533901507. It manages the operating sequence and timing functions on the Hamworthy WM110 NG appliance. It is listed within the clocks, timers and programmers category of Hamworthy gas boiler spares.

Signs this part needs replacing

  • The boiler does not respond to heating or hot water demand.
  • The programmer display is blank, incomplete or unreadable.
  • Timing and scheduling functions behave erratically or fail to hold settings.
  • The appliance locks out or faults repeatedly with no other obvious cause.
  • The control unit shows signs of heat damage, moisture ingress or corrosion.

Before you order

  • Confirm the appliance model is the Hamworthy WM110 NG.
  • Check the existing programmer carries the LMU64 designation and part number 533901507.
  • Verify the boiler is set up for natural gas (NG) before fitting.
  • Isolate the electrical supply to the appliance before any work begins.

Not sure which part?

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