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Baxi 5114748 Pressure Switch

Baxi

Baxi 5114748 Pressure Switch

Baxi 5114748 pressure switch, a boiler sensor and switch component supplied singly for Baxi heating appliances.

At a glance

  • Also known as BAXI5114748
Manufacturer part no.
5114748
Showing prices

£22.60

£18.83 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Baxi 5114748 is a pressure switch supplied by Baxi as a boiler spare. It forms part of the appliance's sensor and switch group, monitoring pressure within the circuit it serves and signalling the boiler control board so the appliance only runs when the correct pressure condition is present. A failed switch typically shows up as a boiler that will not fire, locks out repeatedly, or runs intermittently.

Signs this part needs replacing

  • The boiler fails to fire or will not attempt ignition when there is a demand for heat or hot water.
  • Repeated lockouts that clear on reset but return shortly afterwards.
  • Intermittent running, with the boiler cutting out part way through a cycle.
  • Fault codes or diagnostic indications relating to pressure or fan/air proving on the appliance display.
  • No heating or hot water despite the pump running and the controls calling for heat.

Before you order

  • Confirm the part number on the existing component or in the boiler's service documentation matches 5114748.
  • Check the model and serial details on the appliance data badge against the compatibility information for your boiler.
  • Inspect any seals, gaskets or tubing connected to the switch and replace them if they are perished or damaged.

Not sure which part?

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