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Viessmann Water Switch 7822762

Viessmann

Viessmann Water Switch 7822762

Water switch for Viessmann Vitodens WB2A and WB3A Combi 26KW boilers built from 21 November 2003.

At a glance

  • Appliance family: Vitodens WB2A and WB3A Combi 26KW
  • Also known as 2320478
Manufacturer part no.
7822762
Showing prices

£36.97

£30.81 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 Viessmann 7822762 is a water switch (flow switch) for Viessmann Vitodens combi boilers, specified for appliances built from 21 November 2003. It detects water flow through the boiler and signals the control to respond to demand. It is a serviceable component for the Vitodens WB2A and WB3A Combi 26KW models.

Signs this part needs replacing

  • Boiler does not fire when a hot tap is opened
  • Hot water runs cold or fluctuates between hot and cold
  • Flow switch fails to register demand, so the boiler stays in standby
  • Intermittent or delayed hot water response
  • Boiler locks out or shows a fault during draw-off

Before you order

  • Confirm the appliance is a Vitodens WB2A or WB3A Combi 26KW
  • Check the serial number against the fit list above where applicable
  • Confirm the appliance was manufactured on or after 21 November 2003
  • Quote part number 7822762 when ordering

Not sure which part?

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