Potterton
Potterton Wiring Harness Flue Thermostat/Fan 5132578
Wiring harness for the flue thermostat and fan circuit on Potterton Commercial Sirius WH90 and WH110 boilers.
£43.20
£36.00 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
This is the flue thermostat and fan wiring harness, manufacturer part number 5132578, for Potterton Commercial boilers. It carries the electrical connections between the flue thermostat, the fan and the boiler control circuit on the Sirius WH range. The harness is supplied as a complete assembly with its fitted plugs and terminals.
Signs this part needs replacing
- The fan runs intermittently or fails to start, with the harness as the suspected break in the circuit.
- Flue thermostat faults that clear when the harness or its plugs are moved.
- Cracked, brittle or heat-damaged insulation on the conductors.
- Overheated, discoloured or loose terminals in the harness plugs.
- Continuity faults traced along the flue thermostat or fan wiring.
Before you order
- Confirm the boiler model against the fit list above, as the harness is specific to the Sirius WH90 and WH110.
- Check the part number on the existing harness or in the boiler literature matches 5132578.
- Inspect the flue thermostat and fan connections for damage that may also need addressing.
- Isolate the appliance electrically before removing or refitting the harness.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS WH110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS WH90 | — | — | — |
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.