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Alpha flow switch 6.5634060

Alpha

Alpha flow switch 6.5634060

Genuine Alpha flow switch, part number 6.5634060, for boilers up to serial number A74708025.

At a glance

  • Also known as 1251252
  • Fitting should be carried out or checked by a Gas Safe registered engineer
Manufacturer part no.
6.5634060
GC number
343-801
Showing prices

£168.64

£140.53 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 flow switch fitted to affected Alpha boilers, which detects water flow through the system and signals the boiler to fire. It is a genuine Alpha part, number 6.5634060, listed by the manufacturer's own parts records as applicable up to boiler serial number A74708025.

Signs this part needs replacing

  • Boiler does not fire despite the pump running and water flowing
  • Intermittent or nuisance lockouts related to flow
  • Switch tests as faulty when checked by an engineer
  • Fault codes relating to flow detection

Before you order

  • Check your boiler's serial number against the cutoff quoted (up to A74708025) before ordering
  • Isolate and drain the relevant circuit before removing the old switch
  • Fitting should be carried out or checked 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.