Hamworthy
Hamworthy Control PCB 533901448
Siemens LMU 64 control PCB for Hamworthy Modumax 220 floor standing boilers, part number 533901448.
At a glance
- Also known as 2062100
£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 Siemens LMU 64 control PCB is the main burner control board used on Hamworthy Modumax 220 floor standing boilers. It manages the ignition sequence, flame supervision and boiler safety interlocks. This board is supplied programmed for the Wessex Modumax 220 NG application.
Signs this part needs replacing
- The boiler locks out and will not complete an ignition sequence
- No response to a call for heat, with the fan and pump not running
- Repeated lockouts that clear on reset but return shortly after
- Erratic or absent flame supervision, with the burner cutting out mid-cycle
- Visible damage, scorching or moisture tracking on the board
Before you order
- Confirm the appliance is a Hamworthy Modumax 220 floor standing model
- Check the part number on the existing board matches 533901448
- Verify the boiler is set up for natural gas (NG) before fitting
- Isolate the electrical supply and follow the manufacturer's wiring and commissioning instructions
Compliance
| Alternative numbers | 2062100 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — | |
| HAMWORTHY MODUMAX 220 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.
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