Hamworthy
Hamworthy Limit Thermostat 573407087
Limit thermostat 573407087 for Hamworthy Milborne 501 and 502 wall hung condensing boilers.
At a glance
- Appliance family: Milborne 501 and 502 wall hung condensing
- Also known as 2064666
£37.73
£31.44 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 573407087 is a limit thermostat used on Milborne 501 and 502 wall hung condensing boilers. It monitors boiler temperature and interrupts the burner circuit when the set limit is exceeded, protecting the appliance from overheating. It is supplied as a boiler spare for the Hamworthy Milborne range.
Signs this part needs replacing
- Boiler locks out on overheat and needs repeated manual resets
- Burner fires briefly then shuts down before reaching temperature
- No heating or hot water because the limit circuit stays open
- Fault code or lockout indicating an overheat condition
- Thermostat shows no continuity when tested across its terminals
Before you order
- Confirm the boiler is a Milborne 501 or 502 wall hung condensing unit
- Check the markings on the existing thermostat against part number 573407087
- Isolate the electrical supply and confirm the boiler is safe to work on before removal
- Check the wiring connections and mounting arrangement match the part being removed
Compliance
| Alternative numbers | 2064666 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — | |
| HAMWORTHY MILBORNE 501 WALL HUNG CONDENSING | — | — | — | |
| HAMWORTHY MILBORNE 502 WALL HUNG CONDENSING | — | — | — |
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 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.