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Sime Gas Valve 6243826

Sime

Sime Gas Valve 6243826

Sime gas valve 6243826, a SIT 848 Sigma valve (0.848.071) for Dewy HE 30/50 WM and Planet Dewy 30/50BF MET boilers.

At a glance

  • Also known as 2042070
  • Gas valve replacement is gas work and must be carried out by a Gas Safe registered engineer
Manufacturer part no.
6243826
Showing prices

£141.65

£118.04 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 gas valve, part number 6243826, is a SIT 848 Sigma gas valve with the manufacturer reference 0.848.071. It regulates the supply of gas to the burner in Sime gas boilers, opening and modulating flow in response to the appliance's demand. It is listed as a gas boiler spare within the gas valves category.

Signs this part needs replacing

  • The boiler fails to ignite or repeatedly locks out on a gas-related fault
  • No gas reaches the burner when there is a call for heat
  • The flame drops out or fails to modulate during operation
  • Heating and hot water become intermittent, with the boiler cycling into lockout
  • Visible corrosion, damage or a gas smell around the valve body

Before you order

  • Confirm your boiler model matches one of the fitments listed above
  • Check the part number on the existing valve against 6243826 and 0.848.071
  • Check the appliance GC number against the manufacturer's parts list where available
  • Gas valve replacement is gas work and must be carried out by a Gas Safe registered engineer

Not sure which part?

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