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Sime Differential Pressure Switch 6211706

Sime

Sime Differential Pressure Switch 6211706

Differential pressure switch for Sime Planet DEWY 100 BFR gas boilers, used to monitor air pressure within the appliance.

At a glance

  • Appliance family: Sime Planet DEWY 100 BFR
  • Also known as 2042368
Manufacturer part no.
6211706
Showing prices

£96.49

£80.41 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 6211706 is a differential pressure switch (BFR variant) used in Sime gas boilers. It monitors the pressure difference across the fan and flue system, providing a safety signal to the boiler's control board before ignition and during operation. It is listed for the Sime Planet DEWY 100 BFR appliance.

Signs this part needs replacing

  • Boiler locks out or fails to ignite despite the fan running
  • Repeated lockout on start-up that clears intermittently
  • Fan running but no proven air pressure signal at the control board
  • Boiler cutting out during operation with a pressure-related fault code
  • Erratic or intermittent switching causing nuisance lockouts

Before you order

  • Confirm the appliance model is the Sime Planet DEWY 100 BFR
  • Check the part number on the existing switch matches 6211706
  • Verify the BFR variant is the one required for your appliance
  • Inspect the sensing tubes and connections for blockage or damage before replacing the switch

Not sure which part?

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