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Potterton Water Pressure Switch Kit 910026

Potterton

Potterton Water Pressure Switch Kit 910026

Potterton water pressure switch kit, part number 910026, for Puma, Envoy Flowsure and Lynx 2 boilers.

At a glance

  • Also known as 1124850
Manufacturer part no.
910026
GC number
379-897
Showing prices

£42.00

£35.00 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 Potterton 910026 is a water pressure switch kit used on Potterton gas boilers. It monitors water pressure within the appliance and signals the control system when pressure is present, allowing the boiler to run. This kit replaces earlier code 642235.

Signs this part needs replacing

  • Boiler fails to fire on a hot water or heating demand despite the pump running
  • Repeated low pressure faults or lockouts on the boiler display
  • Intermittent ignition that clears when pressure is disturbed
  • No burner operation when water pressure at the appliance is otherwise correct
  • Fault traced to the pressure switch during diagnosis

Before you order

  • Confirm your appliance model against the fit list above
  • Check the control type where your model is listed with SIT or Honeywell controls
  • Compare the existing switch and any code stamped on it with 910026 or 642235
  • Isolate the electrical supply and water before fitting

Not sure which part?

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