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Viessmann Coding Plug 20210203

Viessmann

Viessmann Coding Plug 20210203

Coding plug 20210203 for Viessmann Vitodens 200-W WB2B appliances, used to set the boiler's appliance configuration.

At a glance

  • Part type: coding plug
  • Appliance family: Vitodens 200-W WB2B
  • Also known as 2322010
Manufacturer part no.
7833216
Showing prices

£32.23

£26.86 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 Viessmann coding plug 20210203 is a configuration component for Viessmann Vitodens 200-W WB2B appliances. It carries the appliance coding that the boiler control reads to match the appliance variant. It is fitted to the boiler control assembly and is supplied as a plug-in part.

Signs this part needs replacing

  • The boiler runs with incorrect configuration or output for the installed appliance.
  • Fault codes relating to appliance coding or control configuration are displayed.
  • The boiler fails to fire or locks out after control or PCB work.
  • The existing coding plug is missing, physically damaged or has corroded pins.

Before you order

  • Confirm the appliance model and serial number against the fitment listed above.
  • Compare the part number on the existing coding plug with 20210203 before ordering.
  • Note the coding value on the old plug where the appliance requires it, so the correct configuration is retained.
  • Refer to Viessmann installation and service instructions for coding plug replacement on this appliance.

Not sure which part?

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