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Potterton Primary Heat Exchanger 5139773

Potterton

Potterton Primary Heat Exchanger 5139773

Potterton primary heat exchanger, part 5139773, for Potterton Commercial IHE 100/300 and IHE 150/300 boilers.

At a glance

  • Appliance family: Potterton Commercial IHE
Manufacturer part no.
5139773
Showing prices

£1,156.80

£964.00 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 primary heat exchanger is the component that transfers heat from the boiler's combustion gases to the system water in Potterton Commercial appliances. It is manufactured by Potterton and supplied under part number 5139773. It is used in the Potterton Commercial IHE range of commercial boilers.

Signs this part needs replacing

  • Water leaking from the heat exchanger body, its seams or its connections.
  • Repeated overheating or lockout on the appliance despite correct system circulation.
  • Kettling, banging or rumbling noises from the heat exchanger during firing.
  • Soot, scale or corrosion deposits restricting the waterways or flue passages.
  • Combustion readings that cannot be brought within specification by normal servicing.

Before you order

  • Confirm the appliance model and check that the existing heat exchanger carries the same part number.
  • Verify the appliance is a Potterton Commercial IHE 100/300 or IHE 150/300 before ordering.
  • Check for any associated gaskets, seals or pipework connections that may also need replacing at the same time.
  • Allow for the appliance to be isolated, drained and made safe by a competent heating engineer before work begins.

Not sure which part?

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