Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Buderus Flow Sensor 7101578

Buderus

Buderus Flow Sensor 7101578

Buderus 7101578 flow sensor for 500 series gas boilers, sensing water flow through the heating circuit.

At a glance

  • Also known as 2241897
Manufacturer part no.
7101578
Showing prices

£51.83

£43.19 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 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 Buderus 7101578 is a flow sensor supplied by Buderus for its 500 series gas boilers. It monitors flow through the appliance's water circuit and feeds that signal back to the boiler's control system. It is listed under flow switch spares for gas boilers.

Signs this part needs replacing

  • Boiler fails to fire or locks out despite a call for heat
  • Flow-related fault codes or errors shown on the boiler display
  • Domestic hot water demand is not recognised by the appliance
  • Intermittent or erratic operation when taps or heating are run
  • Pump runs but the boiler does not respond as expected

Before you order

  • Confirm the boiler model matches one of the fitments listed above
  • Check the existing sensor's part number against 7101578
  • Inspect the sensor wiring and connection plug for damage before ordering
  • Verify the fault is not caused by a blocked or restricted water circuit

Not sure which part?

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