
Potterton
Potterton Thermal Fuse 5142401
Thermal fuse 5142401 for Potterton Commercial Sirius 2 and Sirius 3 boilers.
£16.80
£14.00 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 thermal fuse, part number 5142401, is a safety component supplied by Potterton Commercial for its commercial boiler range. It forms part of the boiler's overheat protection, interrupting the circuit if temperatures exceed safe operating limits. This item is listed within the Potterton Commercial spares range for the Sirius 2 and Sirius 3 boiler families.
Before you order
- Confirm the part number 5142401 matches the component listed for your appliance.
- Check the boiler model against the fit list above, as the fuse is listed for specific Sirius 2 and Sirius 3 variants.
- Verify the fault diagnosis before ordering, since a thermal fuse operates as a one-time safety device and replacement should follow a confirmed overheat event.
- Have the appliance serial and model details to hand when cross-checking against the manufacturer's spares information.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS90 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS90 | — | — | — |
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.
