Hamworthy
Hamworthy Control PCB Siemens LMU 64 533901450
Programmed Siemens LMU 64 control PCB, part 533901450, for the Hamworthy Wessex Modumax 250 NG.
At a glance
- Also known as 2064346
£426.50
£355.42 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Hamworthy 533901450 is a programmed control printed circuit board built on the Siemens LMU 64 platform. It handles burner sequencing, flame supervision and boiler safety functions on the Wessex Modumax 250 NG. The board is supplied programmed for this appliance.
Signs this part needs replacing
- Boiler locks out and will not reset
- No ignition sequence, or the burner fails to fire
- Fault or lockout indication at the boiler controls
- Intermittent shutdowns or erratic burner behaviour
- Visible damage to the board, such as scorching, corrosion or moisture ingress
Before you order
- Confirm the appliance model and that the fitted board is a Siemens LMU 64
- Check the existing PCB part number against 533901450
- Confirm the boiler is the natural gas (NG) version
- Isolate the electrical supply before removing or fitting the board
Compliance
| Alternative numbers | 2064346 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — | |
| HAMWORTHY MODUMAX 250C FLOOR STANDING | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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