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Vaillant Sensor Vortex DN10 0020085154

Vaillant

Vaillant Sensor Vortex DN10 0020085154

Vaillant vortex sensor DN10 with O-ring, part 0020085154, for VPM 15 D and VPM 30 D pump units.

At a glance

  • Also known as 1387604
Manufacturer part no.
0020085154
Showing prices

£63.47

£52.89 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 Vaillant vortex sensor (DN10) with O-ring, part number 0020085154, is a sensing component used in Vaillant pump units. It monitors flow through the pump assembly so the appliance can regulate output correctly. The O-ring is supplied with the sensor to seal the sensor body at its mounting point.

Signs this part needs replacing

  • Flow or output readings that are erratic or inconsistent during operation
  • Fault codes relating to flow, pump or sensor signal on the appliance display
  • The pump unit failing to modulate or respond as expected to demand
  • Visible damage, contamination or debris on the sensor body
  • Weeping or dampness around the sensor mounting where the O-ring has perished

Before you order

  • Confirm your appliance model against the fit list above
  • Check the part number on the existing sensor matches 0020085154
  • Inspect the sensor mounting point and O-ring seating for damage or debris before fitting
  • Verify the DN10 designation matches the connection on your pump unit

Not sure which part?

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