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Sime Divertor Valve Microswitch 6150700

Sime

Sime Divertor Valve Microswitch 6150700

Microswitch for the divertor valve on Sime Format, Friendly, Planet, Aquaquick and Super gas boilers.

At a glance

  • Part type: divertor valve microswitch
  • Also known as DIVERTOR-VALVE-MICROSWITCH, 2040604
Manufacturer part no.
6150700
Showing prices

£10.90

£9.08 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 6150700 is a divertor valve microswitch used across a range of Sime gas boilers. It sits on the divertor valve assembly and signals the appliance's control circuit when the valve has moved into its heating or hot water position. A failed switch interrupts that signal and the boiler cannot change mode reliably.

Signs this part needs replacing

  • Boiler fails to switch between central heating and hot water, or stays in one mode only
  • Domestic hot water demand does not bring the boiler on, despite the divertor valve moving
  • Boiler cuts out or locks out intermittently during a mode change
  • Microswitch operates unreliably, requiring repeated demand cycling before the boiler fires
  • Visible scorching, cracking or a loose lever arm on the switch body

Before you order

  • Confirm your boiler model and GC number against the fit list above before ordering
  • Check whether your appliance is the natural gas (MET) or LPG (GPL) variant, as both appear in the fit list
  • Inspect the divertor valve assembly to confirm the fault lies with the microswitch rather than a hardened diaphragm or seized spindle
  • Verify the switch mounting and lever arrangement on the existing valve before removal

Not sure which part?

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