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Biasi Air Pressure Switch KI1267103

Biasi

Biasi Air Pressure Switch KI1267103

Biasi air pressure switch rated at 0.88 mbar, used across a range of Biasi gas boilers up to serial number N276860901.

At a glance

  • Part type: air pressure switch
  • Also known as 1650747
Manufacturer part no.
KI1267103
GC number
169-127
Showing prices

£81.97

£68.31 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 Biasi KI1267103 is an air pressure switch rated at 0.88 mbar, used on a range of Biasi gas boilers. It monitors the pressure produced by the fan and proves airflow to the appliance's control system before ignition is permitted. The switch is specified for units built up to serial number N276860901.

Signs this part needs replacing

  • The fan runs but the boiler fails to fire, with no ignition sequence starting
  • Repeated lockouts on start-up or during a demand for heat
  • Intermittent operation where the boiler fires only when the switch settles in a particular position
  • A fault code relating to air pressure or airflow proving on the appliance display
  • Boiler shuts down shortly after the fan starts, despite the fan running correctly

Before you order

  • Confirm the appliance serial number is below N276860901, as this switch is specified for units up to that number
  • Check the model against the fitment list above, including the suffix letter where shown
  • Compare the part number on the existing switch with KI1267103 before ordering
  • Inspect the sensing tubes and fan for blockages or damage, as these can mimic a failed switch

Not sure which part?

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