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Navien Printed Circuit Board 30013542B

Navien

Navien Printed Circuit Board 30013542B

Navien main printed circuit board for NCB-CE ERP system and combination boilers.

At a glance

  • Part type: main printed circuit board / controller
  • Appliance family: NCB-CE ERP system and combination boilers
Manufacturer part no.
30013542B
Showing prices

£153.41

£127.84 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 Navien 30013542B is the main printed circuit board (controller) used across the NCB-CE ERP boiler range. It manages ignition, modulation, pump and fan control, and the safety interlocks on both system and combination models. The board is listed by the manufacturer as CONTROLLER;KDC-820-XM,NCB-CE,MAIN.

Signs this part needs replacing

  • Boiler has no power or the display remains blank with the supply confirmed live
  • Repeated lockout or fault codes that clear only temporarily after a reset
  • Burner fails to fire despite a call for heat and correct gas and water conditions
  • Pump, fan or diverter valve not being driven when the boiler is running
  • Erratic behaviour, such as random shutdowns or settings resetting themselves

Before you order

  • Confirm your boiler model and serial number against the fitment list above
  • Check the connector layout and terminal positions on the existing board match the replacement
  • Isolate the electrical supply and verify the fault is at the board rather than a sensor, pump or wiring loom
  • Note any fault codes stored before removal so they can be cleared after fitting

Not sure which part?

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