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Alpha ignition microswitch assembly 6.5629940

Alpha

Alpha ignition microswitch assembly 6.5629940

Genuine Alpha ignition microswitch assembly, part number 6.5629940, for boilers up to serial number A72901594.

At a glance

  • Also known as 1251199
  • This is gas appliance work and should be carried out by a Gas Safe registered engineer
Manufacturer part no.
6.5629940
Showing prices

£61.40

£51.17 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

This is the ignition microswitch assembly fitted to affected Alpha boilers, part of the ignition sequence control that confirms a component is in the correct position before the boiler is allowed to fire. It is a genuine Alpha part, number 6.5629940, listed by the manufacturer's own parts records as applicable up to boiler serial number A72901594.

Signs this part needs replacing

  • Boiler fails to ignite or locks out during the ignition sequence
  • Intermittent ignition faults that clear on reset
  • Fault codes relating to ignition or interlock switches
  • Switch tests as faulty when checked by an engineer

Before you order

  • Check your boiler's serial number against the cutoff quoted (up to A72901594) before ordering
  • Isolate electrical power to the boiler before working on this part
  • This is gas appliance work and should be carried out by a Gas Safe registered engineer

Not sure which part?

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