Halstead
Halstead Overheat Thermostat 550517
Overheat thermostat (thermodisc) for Halstead Quattro and Wickes 2000 gas boilers, part number 550517.
At a glance
- Also known as 1292598
£29.21
£24.34 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 Halstead 550517 is an overheat thermostat (thermodisc) used on Halstead gas boilers. It monitors appliance temperature and interrupts the burner circuit if the boiler overheats, acting as a safety cut-out. It sits within the Halstead thermostats range of gas boiler spares.
Signs this part needs replacing
- The boiler locks out repeatedly with an overheat fault
- The boiler fires and then shuts down before reaching temperature
- The overheat cut-out trips when the system is not running hot
- The boiler needs manual resetting after running
- Overheat faults persist after circulation and system temperature have been checked
Before you order
- Confirm the boiler model matches one of the appliances listed above
- Check the part number on the existing thermostat against 550517
- Confirm the fault lies with the overheat thermostat rather than a circulation, sensor or control issue
- Isolate the appliance and turn off the gas supply before fitting
Compliance
| GC number | 379-267 |
|---|---|
| Alternative numbers | 1292598 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HALSTEAD QUATTRO | 47-333-01 | 47-333-01 | — | — |
| HALSTEAD WICKES 2000 | 47-333-03 | 47-333-03 | — | — |
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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