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Vokera CN9 Water Pressure Switch + Cylinder Stat 20040984

Vokera

Vokera CN9 Water Pressure Switch + Cylinder Stat 20040984

Vokera CN9 water pressure switch and cylinder stat, part 20040984, for the Verve System 47KW boiler.

At a glance

  • Appliance family: Verve System
  • Also known as 1533765
Manufacturer part no.
20040984
Showing prices

£38.21

£31.84 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

The Vokera CN9 water pressure switch and cylinder stat, part number 20040984, is a combined control component used on Vokera Verve System 47KW boilers. It monitors water pressure in the heating circuit and provides cylinder temperature control signalling to the appliance. It is supplied as a switch assembly for service and repair work.

Signs this part needs replacing

  • The boiler locks out or fails to fire when system pressure is correct
  • The pressure gauge reads normal but the appliance behaves as though pressure is low
  • Cylinder hot water runs consistently hotter or cooler than the set temperature
  • Intermittent faults that clear when the switch or its wiring is disturbed
  • Fault indications relating to water pressure or cylinder temperature

Before you order

  • Confirm the appliance is a Vokera Verve System 47KW
  • Check the fitted component reference CN9 and part number 20040984 against the part being replaced
  • Verify the fault lies with the switch rather than the wiring or system pressure
  • Isolate and depressurise the boiler before fitting

Not sure which part?

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