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Alpha Pressure Switch Cap 1.024863

Alpha

Alpha Pressure Switch Cap 1.024863

Pressure switch cap for Alpha ECO 2 and InTEC 2 gas boilers, part number 1.024863.

At a glance

  • Part type: pressure switch cap
  • Also known as EXPANSION-RELIEF-INDICATORPLUG, 1258755
Manufacturer part no.
1.024863
Showing prices

£4.30

£3.58 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 pressure switch cap is a component of the air pressure switch assembly used on Alpha gas boilers. It is manufactured by Alpha and listed under part number 1.024863. The cap forms part of the pressure sensing arrangement that the boiler uses to confirm fan and flue operation before allowing ignition.

Signs this part needs replacing

  • Boiler fails to fire or locks out intermittently
  • Pressure switch readings unstable or inconsistent
  • Visible cracking, perishing or distortion of the cap
  • Dirt, debris or moisture contamination around the cap and switch body
  • Fault code or diagnostic indication pointing to the air pressure switch circuit

Before you order

  • Confirm the boiler model and GC number against the fitment list above
  • Check the existing cap and switch assembly for damage or contamination before replacing
  • Verify the part number 1.024863 matches the marking on the component being removed
  • Isolate the appliance and follow the manufacturer's instructions when working on the pressure switch circuit

Not sure which part?

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