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Keston Q28S/H PCB kit, natural gas (Q10S039000)

Keston

Keston Q28S/H PCB kit, natural gas (Q10S039000)

Genuine Keston Q28S/H printed circuit board kit for natural gas boilers, supersedes Q10S401000.

At a glance

  • Also known as 1633723
  • Have a Gas Safe registered engineer fit and commission the replacement
Manufacturer part no.
Q10S039000
Showing prices

£659.52

£549.60 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 Q10S039000 is Keston's Q28S/H printed circuit board kit for natural gas boilers, listed by distributors as the replacement for the earlier Q10S401000 board.

Signs this part needs replacing

  • Boiler locks out or fails to ignite with no obvious mechanical fault
  • Display or fault-code diagnostics point to a control board fault
  • Intermittent loss of power to the fan, pump or ignition
  • Burning smell or visible scorch marks on the existing board
  • An engineer's diagnostic points to the PCB after checking sensors and wiring

Before you order

  • Confirm your boiler model and GC number match a Keston Qudos 28S/28H natural gas boiler
  • Confirm the fuel type is natural gas, not LPG
  • Isolate the electrical supply and gas before removing the old board
  • Have a Gas Safe registered engineer fit and commission the replacement

Not sure which part?

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