Potterton
Potterton By-Pass Assembly 5138685
Potterton by-pass assembly, part number 5138685, for Potterton Commercial Sirius SAT Rs2Z boilers.
At a glance
- Appliance family: Potterton Commercial Sirius
£12.00
£10.00 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 Potterton By-Pass Assembly is a boiler component supplied under part number 5138685. It is listed for the Potterton Commercial Sirius SAT Rs2Z boiler and forms part of the appliance's internal water circuit. The by-pass assembly manages flow through the heat exchanger circuit, helping to maintain circulation and stable operating conditions across the boiler.
Signs this part needs replacing
- Overheat faults or the boiler locking out during operation
- Poor or restricted circulation through the heating circuit
- Unusual noise from the boiler when the pump runs
- Water weeping or staining around the by-pass assembly
Before you order
- Confirm the boiler model is the Potterton Commercial Sirius SAT Rs2Z
- Check the existing by-pass assembly against part number 5138685
- Inspect the surrounding pipework and connections for damage before fitting
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS SAT RS | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS SAT RS2Z | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS SAT RSP | — | — | — |
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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