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Viessmann Ignition/Ionisation Electrode 7841762

Viessmann

Viessmann Ignition/Ionisation Electrode 7841762

Viessmann ignition and ionisation electrode, part number 7841762, for Vitodens 050-W combi boilers.

At a glance

  • Also known as 2321462
Manufacturer part no.
7841762
Showing prices

£41.70

£34.75 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Ignition/Ionisation Electrode is a combined spark and flame-sensing electrode for Vitodens 050-W combi boilers. It provides the ignition spark at the burner and, once combustion is established, returns an ionisation signal to the control board to confirm a flame is present. It is supplied under Viessmann part number 7841762.

Signs this part needs replacing

  • Boiler attempts to fire but fails to ignite, or ignition is intermittent
  • Repeated lockouts with a flame failure fault after the burner lights
  • Sparking visible at the electrode but no sustained flame detection
  • Electrode tip shows cracking, heavy sooting, corrosion or a widened spark gap
  • Ceramic insulator damaged or tracking

Before you order

  • Confirm the appliance model and serial number against the fit list above
  • Match the existing electrode part number 7841762 before removal
  • Inspect the electrode and its lead for damage, contamination and correct gap on refit
  • Isolate the electrical supply and gas before starting work

Not sure which part?

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