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Heatline Diverter Valve D020113004

Heatline

Heatline Diverter Valve D020113004

Heatline D020113004 diverter valve for Capriz Plus and Monza combination boilers, directing primary water between heating and hot water circuits.

At a glance

  • Part type: Diverter valve and hydraulics
  • Appliance family: Capriz Plus, Monza
  • Also known as 2171388
Manufacturer part no.
D020113004
Showing prices

£9.22

£7.68 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next 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 Heatline D020113004 is a diverter valve from the hydraulic section of Heatline combination boilers. It controls the path of primary water through the appliance, switching flow between the central heating circuit and the domestic hot water heat exchanger as demand changes. It is used across the Capriz Plus and Monza ranges.

Signs this part needs replacing

  • No hot water at the tap while the central heating still runs normally
  • Domestic hot water cycling hot and cold during a draw-off
  • Radiators warming up when a hot tap is opened
  • The boiler failing to change between heating and hot water modes
  • Weak or inconsistent hot water temperature at the outlet

Before you order

  • Confirm your appliance model and GC number against the compatibility list before ordering.
  • Check the part number marked on the existing component matches D020113004.
  • Cross-reference the alternative number 2171388 when identifying the part already fitted.
  • Inspect the seals and O-rings in the hydraulic block and renew them if they are worn or hardened.

Not sure which part?

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