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Navien Condensate Trap 30018981A

Navien

Navien Condensate Trap 30018981A

Condensate trap siphon for Navien NCB-CE ERP system and combination boilers, with flat clip fitting.

Manufacturer part no.
30018981A
Showing prices

£29.34

£24.45 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 condensate trap (siphon) 30018981A is a condensate management component used on Navien NCB-CE ERP system and combination boilers. It collects condensate produced during combustion and discharges it safely to drain, while preventing flue gases from escaping through the condensate route. The trap is secured with a flat clip.

Signs this part needs replacing

  • Water or condensate leaking from the trap body or its connections
  • Condensate backing up or overflowing rather than draining away
  • Gurgling or bubbling noises from the condensate route during operation
  • Silt, scale or debris build-up inside the trap that cannot be cleared
  • Boiler locking out or faulting in a way traced to blocked or leaking condensate disposal

Before you order

  • Confirm your boiler model and kW rating against the fitment list above
  • Check the existing trap for cracks, hardened seals or a damaged clip
  • Verify the trap is the source of the leak or blockage before replacing it
  • Have the boiler isolated and drained as required before fitting

Not sure which part?

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