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Sime 14 Pole Lumberg Connector CN6 6299923

Sime

Sime 14 Pole Lumberg Connector CN6 6299923

Sime 14 pole Lumberg connector CN6, part number 6299923, for Ecomfort HE and Ecomfort PLUS HE gas boilers.

At a glance

  • Also known as 2042710
Manufacturer part no.
6299923
Showing prices

£32.80

£27.33 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 14 pole Lumberg connector CN6 (part number 6299923) is a multi-pin electrical connector used on Sime Ecomfort HE and Ecomfort PLUS HE gas boilers. It links the boiler's wiring harness to the control assembly, carrying low-voltage signals and supply between the boards and connected components. It is a serviceable electrical spare, not a hydraulic or gas-carrying part.

Signs this part needs replacing

  • Intermittent faults, lockouts or error codes that change when the connector or its loom is moved
  • Loose, pushed-back or poorly seated pins causing loss of continuity
  • Discoloured, scorched or brittle connector housing from heat or arcing
  • Corroded or green-tinged terminals, or water ingress into the plug body
  • Cracked latch or retaining clip that will not hold the plug firmly in its socket

Before you order

  • Confirm your boiler model and GC number against the fit list above
  • Check the existing connector for pole count and keying so the replacement matches the socket
  • Inspect the mating socket and loom for damage that a new connector alone will not fix
  • Isolate the electrical supply before removing or refitting any boiler connector

Not sure which part?

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