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Potterton PCB 2 5139790

Potterton

Potterton PCB 2 5139790

Potterton PCB 2 (LMS Board 2), part number 5139790, a printed circuit board for Potterton Commercial IHE boilers.

Manufacturer part no.
5139790
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 2, also listed as LMS Board 2, is a printed circuit board manufactured by Potterton for the Potterton Commercial appliance range. It is the control board for the boiler, handling the electronic sequencing and management of the appliance's operation. It is supplied under Potterton part number 5139790.

Signs this part needs replacing

  • The boiler fails to start or run through its sequence, with no response from the controls.
  • Repeated lockouts or fault codes that point to the control board rather than a sensor or gas-side fault.
  • No display, no indicator activity, or intermittent operation of the board.
  • Burner or fan operation that cannot be commanded or sustained despite the associated components testing correctly.

Before you order

  • Confirm the appliance model is a Potterton Commercial IHE 100/300 or IHE 150/300.
  • Check the existing board and its labelling against part number 5139790 before ordering.
  • Verify that the fault is on the board itself, having first checked sensors, wiring and connections.
  • Isolation of the electrical supply is required before any board removal or fitting.

Not sure which part?

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