Hamworthy
Hamworthy Siemens LMU64 Boiler Control F50W NG 533901642
Hamworthy 533901642 Siemens LMU64 boiler control for F50W NG appliances.
At a glance
- Also known as 2065126
£436.15
£363.46 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 533901642 is a Siemens LMU64 boiler control unit used on F50W NG appliances. It governs burner sequencing, ignition and safety monitoring on the appliance. It is listed as a Hamworthy spare part.
Signs this part needs replacing
- The appliance locks out repeatedly and will not complete a start sequence
- The burner fails to fire despite a call for heat
- Fault codes appear on the control, or the display is blank
- The fan, pump or burner sequence does not run when demanded
- Intermittent shutdowns or erratic operation during a run cycle
Before you order
- Confirm the appliance model matches F50W NG
- Confirm the existing control is marked Siemens LMU64
- Check the number 533901642 against the label on the failed control
- Isolate the electrical supply before removing the old control
Compliance
| Alternative numbers | 2065126 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — |
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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