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Viessmann Pressure Switch Tube 7823843

Viessmann

Viessmann Pressure Switch Tube 7823843

Viessmann pressure switch tube connecting the gas valve to the pressure switch on Vitodens 100 and WB1A boilers.

At a glance

  • Also known as 2320560
Manufacturer part no.
7823843
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 pressure switch tube is a Viessmann control cable pipe that runs from the gas valve to the pressure switch. It is used on Viessmann Vitodens 100 and Vitodens 100-W WB1A appliances built between 14.01.2005 and 12.08.2005. Its function is to carry the pressure signal from the gas valve to the pressure switch so the boiler can prove correct operating conditions.

Signs this part needs replacing

  • The boiler fails to fire or locks out because the pressure switch is not receiving a signal
  • Visible cracking, hardening or brittleness along the tube
  • Traces of leakage or moisture at the tube connections
  • The tube has been disturbed, kinked or pulled loose during servicing
  • Intermittent boiler operation traced to the pressure switch circuit

Before you order

  • Confirm the appliance model and variant, such as combi, system or heating only, and its kW rating
  • Check the boiler serial number against the fitment list, as fitment is restricted to a defined production period
  • Inspect the existing tube routing and connections to confirm this is the correct pipe from gas valve to pressure switch
  • Have the appliance identification plate details to hand before ordering

Not sure which part?

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