Hamworthy
Hamworthy Siemens LMU64 Boiler Control 533901637
Siemens LMU64 boiler control, part 533901637, for Hamworthy F300H NG appliances.
At a glance
- Also known as 2065124
£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 Siemens LMU64 boiler control is a printed circuit board control unit used on Hamworthy F300H NG appliances. It manages burner sequencing, ignition and safety monitoring on the appliance. This part is supplied under Hamworthy part number 533901637.
Signs this part needs replacing
- The boiler fails to fire or does not respond to a call for heat
- Repeated lockouts that cannot be cleared by resetting
- No display, no status indication or a dead control panel
- Fault codes relating to the control board appearing on the appliance
- Intermittent operation or unexpected shutdowns during a demand
Before you order
- Confirm the appliance model is a Hamworthy F300H NG
- Check the gas type matches the control you are replacing
- Compare the part number on the existing control against 533901637
- Verify the existing board is the Siemens LMU64 variant before ordering
Compliance
| Alternative numbers | 2065124 |
|---|
| 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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