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Sime Ionisation Electrode 6221630

Sime

Sime Ionisation Electrode 6221630

Ionisation electrode for Sime Murelle HE 12 and Murelle EV HE 12 boilers, part number 6221630.

At a glance

  • Appliance family: Murelle HE 12 / Murelle EV HE 12
  • Also known as 2042384
  • Gas-carrying components must be worked on by a Gas Safe registered engineer
Manufacturer part no.
6221630
Showing prices

£22.74

£18.95 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 6221630 is an ionisation electrode for Sime Murelle HE 12 and Murelle EV HE 12 gas boilers. It sits in the combustion circuit and provides the flame-sensing signal the boiler control board uses to confirm a flame is present. It is a serviceable component of the burner assembly.

Signs this part needs replacing

  • Boiler fails to ignite or goes to lockout on a call for heat
  • Flame is established and then lost shortly after ignition
  • Repeated, intermittent lockouts with no other obvious fault
  • Ignition or flame-detection fault indicated on the boiler display
  • Electrode tip visibly worn, cracked, distorted or heavily oxidised

Before you order

  • Confirm the boiler model matches one of the appliances listed in the Fits section
  • Check the part number 6221630 against the manufacturer's parts list for your appliance
  • Compare the electrode with the one removed, including its lead and fixing arrangement
  • Gas-carrying components must be worked on 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.