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Potterton PCB 3 5139791

Potterton

Potterton PCB 3 5139791

Potterton PCB 3 control board for Potterton Commercial IHE 100/300 and IHE 150/300 boilers.

Manufacturer part no.
5139791
Showing prices

£401.74

£334.78 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 PCB 3 is a printed circuit board supplied by Potterton for its commercial boiler range. It is listed as the LMS Board 3 and carries the manufacturer part number 5139791. The board controls the operating sequence and electrical functions of the appliance it is fitted to.

Signs this part needs replacing

  • The boiler fails to start or run through its ignition sequence
  • Repeated lockouts or fault codes that clear only temporarily
  • No response from the controls, display or pump and fan outputs
  • Visible heat damage, corrosion or burn marks on the board
  • Erratic or intermittent operation traced to the control board

Before you order

  • Confirm the appliance model is listed in the Fits section above
  • Check the existing board and its part number against 5139791
  • Verify the fault lies with the board rather than wiring, sensors or the supply
  • Note any fault codes shown before removing the existing board

Not sure which part?

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