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Sime Divertor Valve Kit 6281540

Sime

Sime Divertor Valve Kit 6281540

Divertor valve kit with Technyl diaphragm for Sime Format 30 HE boilers.

At a glance

  • Also known as DIVERTOR-VALVE-SPARES-KIT
Manufacturer part no.
6281540
Showing prices

£45.12

£37.60 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 Sime divertor valve kit for the Format 30 HE boiler. It contains a Technyl diaphragm and forms part of the diverter valve assembly that directs water flow between the heating and hot water circuits. This kit is used when the diaphragm within the diverter valve requires replacement.

Signs this part needs replacing

  • Domestic hot water runs cold while central heating operates normally.
  • Central heating does not activate when hot water is demanded.
  • Boiler fails to switch between heating and hot water modes.
  • Inconsistent or fluctuating water temperature at hot water taps.
  • Diverter valve sticking or not moving fully between positions.

Before you order

  • Confirm your boiler model is Sime Format 30 HE.
  • Check the existing divertor valve part number or GC number against the fit list.
  • Verify that the diaphragm kit is the correct repair for the fault symptoms.
  • Ensure you have the necessary tools and access to the diverter valve.

Not sure which part?

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