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Potterton Control LMU (PCB) 687485

Potterton

Potterton Control LMU (PCB) 687485

Control LMU (PCB) for Potterton Commercial Paramount TWO 80 KW boilers from serial number 811XXXX, part 687485.

At a glance

  • Part type: Control LMU (PCB)
Manufacturer part no.
687485
Showing prices

£757.20

£631.00 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 Control LMU is the printed circuit board that manages the operating sequence and safety functions of the appliance. This unit is manufactured by Potterton for the Potterton Commercial Paramount TWO range. It is specified for 80 KW models and applies to appliances from serial number 811XXXX onwards.

Signs this part needs replacing

  • The boiler fails to start or complete its ignition sequence
  • Lockout or fault codes appear that cannot be cleared by resetting
  • The appliance runs erratically or shuts down mid-cycle without a mechanical cause
  • No response from the controls, display or connected sensors
  • Visible heat damage, burning or corrosion on the board

Before you order

  • Confirm the boiler model is a Potterton Commercial Paramount TWO at 80 KW
  • Check the appliance serial number is 811XXXX or later, as this board is specified from that number
  • Match the existing board against part number 687485 before removal
  • Isolate the electrical supply before fitting and follow the manufacturer's wiring guidance

Not sure which part?

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