Navien
Navien Thermistor DHW 30014552A
DHW thermistor for Navien NCB-CE ERP system and combination boilers, part number 30014552A.
At a glance
- Part type: thermistor
£22.48
£18.73 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 30014552A is a domestic hot water (DHW) thermistor used on Navien NCB-CE ERP boilers. It monitors DHW circuit temperature and feeds that reading back to the boiler's control board so the appliance can regulate hot water delivery. It is a manufacturer part specific to the NCB-CE ERP range.
Signs this part needs replacing
- Hot water temperature drifting from the set point or running hot and cold
- Boiler failing to modulate correctly in DHW mode
- DHW temperature readings that are clearly inaccurate or implausible
- Fault codes relating to the DHW sensor circuit
- No DHW demand being registered when a hot tap is opened
Before you order
- Confirm your boiler model against the fitment list above
- Check the serial number of your appliance matches the relevant NCB-CE ERP variant
- Verify the existing sensor part number before removal
- Confirm the fault lies with the DHW thermistor rather than the wiring or control board
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 22 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.