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Potterton PCB 1 5139789

Potterton

Potterton PCB 1 5139789

Potterton PCB 1 printed circuit board, part 5139789, for Potterton Commercial IHE 100/300 and IHE 150/300 boilers.

Manufacturer part no.
5139789
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

Potterton PCB 1 is a printed circuit board for Potterton Commercial gas boilers. It is the boiler control board listed as LMS Board 1, part number 5139789, and is used in the Potterton Commercial IHE appliance family.

Signs this part needs replacing

  • The boiler fails to start or does not respond to demand.
  • The appliance repeatedly locks out or shows fault codes linked to the control board.
  • Heating or hot water operation becomes intermittent.
  • The board shows visible signs of damage, moisture ingress or burning.
  • Faults persist after other boiler safety and ignition components have been checked.

Before you order

  • Check the existing board for the part number 5139789 and the PCB 1 or LMS Board 1 marking.
  • Confirm the boiler model is a Potterton Commercial IHE 100/300 or IHE 150/300.
  • Inspect connectors and wiring for damage before fitting the replacement board.
  • Isolate the electrical supply and follow the manufacturer's fitting instructions.

Not sure which part?

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