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Baxi 5137529 Air Pressure Switch

Baxi

Baxi 5137529 Air Pressure Switch

Baxi 5137529 fan pressure switch for Baxi domestic heating appliances, monitoring fan airflow to allow the ignition sequence to proceed.

At a glance

  • Part type: Fan pressure switch
  • Also known as BAXI5137529
Manufacturer part no.
5137529
GC number
393-947
Showing prices

£58.80

£49.00 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Baxi 5137529 is a fan pressure switch used in Baxi domestic heating appliances. It senses the pressure change created by the fan and signals the appliance control board that airflow has been established, allowing the ignition sequence to continue. It is supplied as a spare part under part number 5137529.

Signs this part needs replacing

  • The appliance locks out during or shortly after the ignition sequence
  • The fan runs but the boiler does not fire
  • Repeated lockouts that clear on reset and then return
  • Fault codes relating to fan or air pressure
  • Intermittent operation that changes with fan or flue behaviour

Before you order

  • Check the appliance GC number and serial number against the compatibility information before ordering
  • Compare the part number on the existing switch with 5137529 to confirm a match
  • Inspect the sensing tube and its connections for blockage, splits or loose fit while the switch is being replaced

Not sure which part?

Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.