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Viessmann Cable Harness Step Motor Amp 7828985

Viessmann

Viessmann Cable Harness Step Motor Amp 7828985

Viessmann cable harness for the step motor, listed under part number 7828985 for Vitodens 100-W gas boilers.

At a glance

  • Also known as 2321038
Manufacturer part no.
7828985
Showing prices

£24.49

£20.41 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

This is a Viessmann cable harness for the step motor, supplied under part number 7828985. It is a wiring assembly that connects the step motor to the boiler's control electronics. It is listed for use across the Viessmann Vitodens 100-W appliance family.

Signs this part needs replacing

  • The step motor does not respond when the boiler calls for it to move.
  • Intermittent or open-circuit faults traced to the harness connector or conductors.
  • Visible damage to the harness, such as chafed, scorched or broken wiring.
  • Connector terminals that are loose, corroded or no longer latch securely.
  • Fault codes or lockouts that persist after the step motor itself has been checked.

Before you order

  • Confirm the boiler model and serial number against the fit list above.
  • Read the fault codes before ordering to rule out a failed step motor rather than the harness.
  • Inspect the existing harness connectors for damage that may also need addressing.
  • Check the manufacturer part number 7828985 against the label on the existing component.

Not sure which part?

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