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Grant Flow Switch MPCBS71X

Grant

Grant Flow Switch MPCBS71X

Grant MPCBS71X flow switch for Vortex PRO internal and external condensing combi boilers in 21E, 26E and 36E outputs.

At a glance

  • Also known as 2160450
Manufacturer part no.
MPCBS71X
Showing prices

£76.58

£63.82 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 Grant MPCBS71X is a flow switch used on Grant Vortex PRO condensing combi oil boilers. It detects water movement through the appliance circuit so the boiler can respond correctly to a demand for domestic hot water. It is supplied as an oil boiler spare in the switches category.

Signs this part needs replacing

  • Hot water demand is not detected and the boiler fails to fire for domestic hot water
  • Domestic hot water is intermittent or cuts out partway through a draw-off
  • The boiler locks out or faults during hot water use when the circuit is flowing
  • Hot water performance changes after work on the water circuit, suggesting a sticking or failed switch

Before you order

  • Confirm the boiler is a Grant Vortex PRO condensing combi, not another Vortex model
  • Check the output rating (21kW, 26kW or 36kW) and whether the appliance is internal or external
  • Check the appliance build date against the 05/08 listing
  • Compare the part number on the existing switch with MPCBS71X before ordering

Not sure which part?

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