Hamworthy
Hamworthy Siemens LMU64 PCB Control Box 533901520
Siemens LMU64 main PCB control box configured for the Hamworthy Purwell Variheat PV125HE NG floor standing boiler.
At a glance
- Also known as 2064344
£426.97
£355.81 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 533901520 is a main PCB control box built around the Siemens LMU64 control board, configured for the Purwell Variheat PV125HE NG floor standing boiler. It governs ignition, burner modulation, safety interlocks and boiler sequencing. PCBs are model specific, so the exact boiler model must be identified before ordering.
Signs this part needs replacing
- Boiler fails to ignite or locks out repeatedly
- No response to heating or hot water demand
- Fault codes or error indications at the boiler controls
- Intermittent running or unexpected shutdowns
- No power or display at the control panel
Before you order
- Identify the exact boiler model — PCBs are model specific
- Confirm the boiler is the Purwell Variheat PV125HE NG variant
- Check the existing board's part number and Siemens LMU64 marking
- Isolate the electrical supply before removal or fitting
Compliance
| Alternative numbers | 2064344 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — | |
| HAMWORTHY PURWELL VARIHEAT PV125HE 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 technical questions yet for this part.
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