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Sime main printed circuit board 6301441

Sime

Sime main printed circuit board 6301441

Genuine Sime main printed circuit board, part number 6301441.

At a glance

  • Part type: Main printed circuit board (PCB)
  • Also known as MAIN-PCB-SIT-ECOMFORT-UK, 2048026, N0388-3
  • Have the work carried out by a Gas Safe registered engineer
Manufacturer part no.
6301441
Showing prices

£426.02

£355.02 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

This is Sime's main printed circuit board, part number 6301441. It is the boiler's central control, monitoring the thermostats, sensors and switches, and enforcing the safety functions that shut the boiler down if a fault is detected. It supersedes the earlier 6301440 and 6301420 boards.

Signs this part needs replacing

  • Boiler will not respond to controls or displays no activity
  • Intermittent lockouts with no clear fault pattern
  • Boiler fails to ignite despite other components testing correctly
  • Display or indicator lights behaving erratically

Before you order

  • Confirm the part number printed on your existing board matches 6301441
  • Isolate electrical power before removing the old board
  • Have the work 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.