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Hamworthy Siemens LMU64 Boiler Control F100H NG

Hamworthy

Hamworthy Siemens LMU64 Boiler Control F100H NG

Siemens LMU64 boiler control in the F100H NG variant, supplied as a Hamworthy boiler spare.

Manufacturer part no.
533901628
Showing prices

£436.15

£363.46 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 Siemens LMU64 is a boiler control unit used to manage burner sequence and boiler operation on compatible appliances. This example carries the F100H NG designation and is catalogued as a Hamworthy boiler spare. It is a control board assembly rather than a general consumable, and is intended for installation by a competent heating engineer.

Before you order

  • Check the existing control in the appliance and confirm the LMU64 designation matches before ordering.
  • Confirm the F100H NG variant is the correct one for the boiler being worked on.
  • Note the SKU 533901628 when cross-checking against the appliance documentation.
  • Installation and any gas-side commissioning should be carried out by a suitably qualified engineer.

Not sure which part?

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