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Vokera Flow Switch Diaphragm (Auto By-Pass) 0557

Vokera

Vokera Flow Switch Diaphragm (Auto By-Pass) 0557

Vokera 0557 flow switch diaphragm with auto by-pass function for use in compatible Vokera gas boilers.

At a glance

  • Also known as 1530043, N0239
Manufacturer part no.
0557
GC number
333-941
Showing prices

£8.14

£6.78 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 0557 is a flow switch diaphragm with auto by-pass function. It is a Vokera component intended for use in Vokera gas boilers. The part sits within the flow switch and auto by-pass assembly.

Signs this part needs replacing

  • Boiler does not fire when hot water is drawn.
  • Hot water output is intermittent or fluctuates.
  • Flow switch fails to activate on demand.
  • Diaphragm is split, stiff or distorted.
  • Auto by-pass operation is inconsistent.

Before you order

  • Check the appliance model and GC number against the compatibility list.
  • Confirm the existing part is identified as Vokera 0557.
  • Inspect the diaphragm and surrounding flow switch assembly for damage.
  • Verify the boiler is a Vokera gas boiler covered by the listed models.

Not sure which part?

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