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Biasi Air Pressure Switch BI1036103

Biasi

Biasi Air Pressure Switch BI1036103

Air pressure switch rated at 1.4 mbar for Biasi gas boilers up to serial number N227450300.

At a glance

  • Also known as 28KW-AIR-PRESSURE-SWITCH, 1650161
Manufacturer part no.
BI1036103
GC number
E05-423
Showing prices

£66.60

£55.50 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 BI1036103 is an air pressure switch rated at 1.4 mbar, fitted to a range of Biasi gas boilers. It monitors the pressure differential created by the fan to prove airflow before the boiler fires. This version is used on appliances up to serial number N227450300.

Signs this part needs replacing

  • Boiler fails to fire or locks out intermittently
  • Fan runs but the boiler does not ignite
  • Fault code indicating an air pressure or fan proving fault
  • Boiler cycles on and off or fails to stay lit
  • Clicking from the switch without ignition

Before you order

  • Check the boiler model and serial number; this switch is for appliances up to serial number N227450300
  • Confirm the existing switch pressure rating matches 1.4 mbar
  • Check the GC number against the list above
  • Inspect the sensing tubes and wiring for blockages or damage before replacing the switch

Not sure which part?

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