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Baxi Refurbished PCB Kit Combi/System 7688421

Refurbished

Baxi Refurbished PCB Kit Combi/System 7688421

Refurbished Baxi printed circuit board kit, part number 7688421, for the Combi and System ranges.

At a glance

  • Also known as 9500020
  • Fitting must be carried out by a Gas Safe registered engineer
Manufacturer part no.
N6493-1
Showing prices

£100.80

£84.00 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 7688421 is a printed circuit board kit for Baxi Combi and System boilers. It is the control centre of the appliance, managing ignition, pump and fan operation via the boiler's switches, thermostats and sensors, and enforcing a safety shutdown if a fault is detected. This is a refurbished, tested unit.

Signs this part needs replacing

  • Boiler will not ignite or repeatedly locks out
  • Fault codes appear and will not clear
  • Boiler does not respond to the room thermostat or programmer
  • Intermittent shutdowns during heating or hot water demand

Before you order

  • Confirm your exact model against the fits list, as this kit covers many Baxi ranges
  • Isolate the electrical supply before removal
  • Fitting must be carried out by a Gas Safe registered engineer

Not sure which part?

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