
Hamworthy
Hamworthy Flow Switch Assembly 533901608
Flow switch assembly, part 533901608, for Hamworthy boilers.
At a glance
- Also known as 2064902
£184.60
£153.83 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 flow switch assembly, part number 533901608, is a hydraulic sensing component used on Hamworthy boilers. It detects water flow through the appliance circuit and signals the control board that flow is present, so the boiler can fire and run safely. It is supplied as a complete assembly.
Signs this part needs replacing
- Boiler fails to fire, or fires intermittently, when there is a demand for heat or hot water
- Lockout or fault codes relating to flow, pump or water detection
- Domestic hot water runs hot and cold, or the boiler short-cycles
- Pump runs but the boiler does not respond to the demand
- Repeated resets are needed to restore operation
Before you order
- Confirm the part number 533901608 matches the component fitted to your appliance
- Check the boiler model and serial number against the manufacturer's parts list
- Inspect the existing switch and its wiring connections to confirm the fault lies with the assembly
- Gas appliance work should be carried out by a competent, registered engineer
Compliance
| Alternative numbers | 2064902 |
|---|
| 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.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.
