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Potterton Burner Diaphragm 669795

Potterton

Potterton Burner Diaphragm 669795

Burner diaphragm for Potterton Commercial Paramount boilers rated at 80 kW.

Manufacturer part no.
669795
Showing prices

£24.00

£20.00 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 DIAPHRAGM - BURNER is a burner component for Potterton Commercial appliances, supplied under part number 669795. It is listed by the manufacturer for Paramount series commercial boilers rated at 80 kW. The diaphragm sits within the burner assembly and is matched to the 80 kW firing rate.

Signs this part needs replacing

  • Burner fails to light or locks out repeatedly on an appliance that is otherwise sound.
  • Unstable or lifting flame at the burner, with combustion readings drifting from the commissioned values.
  • Erratic or fluctuating burner operation that cannot be corrected by normal servicing.
  • Visible cracking, hardening or distortion of the existing diaphragm on inspection.
  • Combustion analysis shows poor or inconsistent results at the 80 kW firing rate.

Before you order

  • Confirm the appliance model is a Potterton Commercial Paramount Three, FOUR or FIVE rated at 80 kW.
  • Check the existing part number on the component or in the appliance documentation matches 669795.
  • Verify the boiler's rating, as this diaphragm is listed for the 80 kW variant only.
  • Inspect the burner assembly for any further worn components before reassembly.

Not sure which part?

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