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Baxi Diaphragm Pressure Thermostat 248619

Baxi

Baxi Diaphragm Pressure Thermostat 248619

Baxi diaphragm pressure thermostat, part 248619, for Combi Instant, Megaflo and Potterton Performa boilers.

At a glance

  • Part type: diaphragm pressure thermostat
  • Also known as N2230
Manufacturer part no.
248619
GC number
E68-373
Showing prices

£14.40

£12.00 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 Baxi diaphragm pressure thermostat, part 248619, is a diaphragm-operated pressure thermostat used within the diverter valve assembly. It is fitted to a range of Baxi and Potterton combi and system boilers, including Combi Instant, Megaflo and Performa models.

Signs this part needs replacing

  • Domestic hot water runs cold or only lukewarm while the heating continues to work
  • The diverter valve fails to move between heating and hot water modes
  • The boiler does not respond when a hot water tap is opened
  • Water weeping from the diaphragm housing on the diverter valve
  • Unstable or fluctuating hot water temperature

Before you order

  • Confirm the boiler model and GC number against the Fits list
  • On Megaflo ErP and Promax Plus models, check the serial number range stated in the fit line
  • Compare the part number 248619 with the existing thermostat
  • Check the existing component is the diaphragm-type pressure thermostat for the diverter valve

Not sure which part?

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