Johnson & Starley
Johnson & Starley thermostat roll-out assembly S01257
A roll-out protection thermostat assembly for the Johnson & Starley STATE SCE75, SCE75G, SCE100-95G, SCT75, SCT75G and SCT100-95G boilers.
At a glance
- Also known as 1690849
- Work should only be carried out by a Gas Safe registered engineer
£104.28
£86.90 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
A roll-out protection thermostat assembly for the Johnson & Starley STATE SCE and SCT range of gas boilers. It senses abnormal heat at the burner enclosure and shuts the burner down if combustion gases roll out instead of passing correctly through the flue.
Signs this part needs replacing
- Boiler locks out on start-up with no obvious ignition fault
- Persistent nuisance lockouts that reset after cooling
- Signs of scorching or heat damage around the assembly
- Engineer diagnosis of an open or failed roll-out thermostat during fault-finding
Before you order
- Match the part number printed on the assembly you are replacing
- Isolate electrical power before removing the old assembly
- Work should only be carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | 1690849 |
|---|
No fitment data held for this part.
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.