Hamworthy
Hamworthy Sequence Interface Module 533901421
Sequence interface module (S.I.M.) printed circuit board for Hamworthy gas boilers, including the Wessex 220M high efficiency floor standing model.
At a glance
- Also known as 2062090
£594.01
£495.01 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 Sequence Interface Module (S.I.M.), part number 533901421, is a printed circuit board used in Hamworthy gas boilers. It controls the sequence of operations the appliance follows when there is a demand for heat. It is listed as a spare for the Hamworthy Wessex 220M high efficiency floor standing boiler.
Signs this part needs replacing
- The boiler does not run through its ignition sequence
- No response to a call for heat
- Intermittent or erratic boiler operation
- Fault codes relating to the control or sequence board
- Visible damage, scorching or corrosion on the board
Before you order
- Confirm your appliance model against the fitment list above
- Check the part number on the existing board matches 533901421
- Inspect the board connectors and mounting points before ordering
Compliance
| Alternative numbers | 2062090 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — | |
| HAMWORTHY WESSEX 220M HIGH EFFICIENCY 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.
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