Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Alpha PCB Fuse 2.5 Amp 1.2379

Alpha

Alpha PCB Fuse 2.5 Amp 1.2379

2.5 amp printed circuit board fuse for Alpha CD series gas boilers, fitting board positions F2 and F3.

At a glance

  • Also known as 1257817
Manufacturer part no.
1.2379
Showing prices

£1.64

£1.37 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 Alpha 1.2379 is a 2.5 amp printed circuit board fuse used on Alpha CD series gas boilers. It protects the board circuit at positions F2 and F3. The fuse is a serviceable component that isolates the board from overcurrent faults.

Signs this part needs replacing

  • The boiler fails to fire or does not respond to a call for heat
  • No power, display or indicator lights on the control panel
  • The fuse reads open circuit on a continuity test
  • A replacement fuse blows again shortly after fitting, pointing to a fault elsewhere in the circuit

Before you order

  • Confirm the fuse designation on your PCB is F2 or F3
  • Check that the required rating is 2.5 amp
  • Isolate the appliance from the electrical supply before removing the fuse
  • Identify why the fuse failed before fitting a replacement, as fuses blow for a reason

Not sure which part?

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