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Potterton Power Switch 5142146

Potterton

Potterton Power Switch 5142146

Potterton power switch, part 5142146, for Potterton Commercial Sirius FS 400 and FS 525 gas boilers.

Manufacturer part no.
5142146
Showing prices

£14.40

£12.00 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

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.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.