Navien
Navien Heat Exchanger Top Packing 20027107A
Heat exchanger top packing for Navien NCB-CE ERP system and combination boilers, part number 20027107A.
At a glance
- Part type: packing
- Appliance family: NCB-CE ERP
£14.11
£11.76 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Navien heat exchanger top packing (part number 20027107A) is a sealing component that fits at the top of the heat exchanger on Navien NCB-CE ERP boilers. It seals the joint at the heat exchanger top to keep the combustion and water circuits contained. It is used across the NCB-CE ERP system and combination boiler range.
Signs this part needs replacing
- Water weeping or staining around the top of the heat exchanger
- Damp or crusted residue at the heat exchanger top joint
- Gradual loss of system pressure with no visible leak elsewhere
- Hardened, flattened or split packing material when the joint is opened
- Slight steam or moisture traces at the top connection during operation
Before you order
- Confirm your boiler model against the fit list above
- Check the serial number of your appliance, as fitment is listed by serial number range
- Verify the existing part number 20027107A before removing the old packing
- Inspect the mating surfaces at the heat exchanger top for corrosion or damage before refitting
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN NCB-CE 20KW SYSTEM BOILER ERP - (Serial Number 6662) | — | — | — | |
| NAVIEN NCB-CE 20KW SYSTEM BOILER ERP - (Serial Number 6662) | — | — | — | |
| NAVIEN NCB-CE 23KW SYSTEM BOILER ERP - (Serial Number 6663) | — | — | — | |
| NAVIEN NCB-CE 23KW SYSTEM BOILER ERP - (Serial Number 6663) | — | — | — | |
| NAVIEN NCB-CE 24KW COMBINATION BOILER ERP - (Serial Number 0128) | — | — | — | |
| NAVIEN NCB-CE 24KW COMBINATION BOILER ERP - (Serial Number 0128) | — | — | — | |
| NAVIEN NCB-CE 24KW COMBINATION BOILER ERP - (Serial Number 2570) | — | — | — | |
| NAVIEN NCB-CE 24KW COMBINATION BOILER ERP - (Serial Number 2570) | — | — | — | |
| NAVIEN NCB-CE 28KW COMBINATION BOILER ERP - (Serial Number 0129) | — | — | — | |
| NAVIEN NCB-CE 28KW COMBINATION BOILER ERP - (Serial Number 0129) | — | — | — |
Showing 10 of 12 compatible appliances.
Documents & drawings
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