Potterton
Potterton Burner FS50 5142378
Potterton burner assembly, part 5142378, for Potterton Commercial Sirius 2 and Sirius 3 FS50 and FS70 boilers.
£124.80
£104.00 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 BURNER (FS50) is a Potterton burner assembly, manufacturer part number 5142378, intended for Potterton Commercial Sirius boilers. It carries the combustion process inside the appliance, mixing fuel and air and presenting the flame to the heat exchanger. It is listed for the Sirius 2 and Sirius 3 commercial boiler models below.
Signs this part needs replacing
- Repeated flame failure or lockout on start-up or during running
- Unstable or uneven flame, or flame that will not hold across the burner head
- Soot or black deposits around the burner, combustion chamber or heat exchanger
- Visible distortion, cracking or corrosion of the burner head or body
- Poor combustion readings that cannot be corrected by setup alone
Before you order
- Confirm the boiler model on the appliance data plate against the fit list
- Check the FS designation on the existing burner matches FS50
- Compare the part number on the existing component against 5142378
- Confirm whether the boiler is a Sirius 2 or Sirius 3 unit before ordering
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS50 | — | — | — |
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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