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Alpha DHW Microswitch Assembly 6.5625770

Alpha

Alpha DHW Microswitch Assembly 6.5625770

Microswitch assembly for the DHW flow valve or three-way valve on Alpha 240 and 280 series gas boilers.

At a glance

  • Also known as DHW-MICROSWITCH-ASSY-240280, 1251147
Manufacturer part no.
6.5625770
GC number
343-568
Showing prices

£20.22

£16.85 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 DHW microswitch assembly is a switch component used on Alpha 240 and 280 series gas boilers. It is fitted to the DHW flow valve or three-way valve and signals the boiler to fire when there is a demand for domestic hot water. The assembly is supplied under Alpha part number 6.5625770.

Signs this part needs replacing

  • No hot water demand signal reaching the boiler, so it does not fire in DHW mode
  • Domestic hot water runs cold or only heats intermittently
  • No audible click from the microswitch when a hot tap is opened
  • Boiler fires for heating but not for hot water
  • Erratic or repeated switching on hot water demand

Before you order

  • Confirm your boiler model and, where shown, the GC number against the fitment list
  • Check the existing part number on the boiler against 6.5625770
  • Confirm whether the switch is fitted to the DHW flow valve or the three-way valve on your appliance
  • Inspect the valve and switch mounting for wear before fitting a replacement switch

Not sure which part?

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