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Viessmann Gas Valve CG10E 7825794

Viessmann

Viessmann Gas Valve CG10E 7825794

Gas valve CG10E for the Viessmann Vitodens 343-F Ws4A, regulating gas supply to the burner.

At a glance

  • Appliance family: Vitodens 343-F Ws4A
  • Also known as 2321548
  • Gas-carrying components must be fitted and commissioned by a Gas Safe registered engineer
Manufacturer part no.
7825794
Showing prices

£322.22

£268.52 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 CG10E is a gas valve supplied by Viessmann for use in its Vitodens gas condensing appliances. It sits in the gas train and controls the flow of gas to the burner under the command of the appliance's control electronics. The part carries the Viessmann part number 7825794.

Signs this part needs replacing

  • The appliance fails to ignite, or lights and then immediately extinguishes
  • Repeated lockout on the appliance after a call for heat or hot water
  • Unstable or fluctuating flame, with poor combustion performance
  • Intermittent heating or hot water that drops out without an obvious pattern
  • A smell of gas around the appliance, which requires the gas supply to be isolated and the installation checked before further use

Before you order

  • Confirm the appliance model and serial number against the fitment details, as this valve is listed for one specific Vitodens 343-F Ws4A unit
  • Check the model marking on the existing gas valve reads CG10E before ordering
  • Gas-carrying components must be fitted and commissioned by a Gas Safe registered engineer
  • Verify whether the appliance is still within its manufacturer warranty, as work carried out outside the approved route can affect cover

Not sure which part?

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