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Viessmann Sensor 5 (DHW) 7819825

Viessmann

Viessmann Sensor 5 (DHW) 7819825

Viessmann Sensor 5 (DHW) thermistor, part number 7819825, for Vitodens 200 and 200-W combi boilers.

At a glance

  • Also known as 2320476
Manufacturer part no.
7819825
Showing prices

£97.36

£81.13 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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

Viessmann Sensor 5 (DHW) is a domestic hot water thermistor used in Viessmann Vitodens 200 and 200-W combi boilers. It monitors DHW temperature and provides feedback to the boiler control. Part number 7819825.

Signs this part needs replacing

  • Domestic hot water runs cold or only intermittently hot.
  • Boiler does not respond consistently to a hot water demand.
  • DHW temperature is inaccurate or fluctuates.
  • A fault or diagnostic message indicates a DHW sensor fault.
  • Boiler locks out or shuts down during hot water draw.

Before you order

  • Confirm the boiler model and serial number against the fit list.
  • Check the existing sensor part number or markings where accessible.
  • Verify part number 7819825 is correct for the appliance.
  • If unsure, consult the manufacturer's parts list for the exact boiler variant.

Not sure which part?

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