
Potterton
Potterton Power Switch 5142146
Potterton power switch, part 5142146, for Potterton Commercial Sirius FS 400 and FS 525 gas boilers.
£14.40
£12.00 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 POWER SWITCH is a Potterton electrical switch component, manufacturer part number 5142146, used on Potterton Commercial gas boilers. It controls the mains supply to the appliance, allowing the boiler to be powered on and off at the control panel. It is listed by the manufacturer under Potterton Commercial spares for the Sirius FS range.
Signs this part needs replacing
- The boiler does not power up when the switch is operated.
- No response from the boiler controls or indicators after switching on.
- The switch feels loose, does not latch, or fails to hold position.
- Power is lost intermittently during operation.
- Visible scorching, discolouration or burning at the switch body or terminals.
Before you order
- Confirm the appliance is a Potterton Commercial Sirius FS 400 or Sirius FS 525.
- Check the part number on the existing switch against 5142146.
- Isolate the electrical supply to the boiler before removing or fitting the switch.
- Verify whether the fault lies with the switch itself or with the supply to the appliance.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS FS 400 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS FS 525 | — | — | — |
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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