Navien
Navien High Limit Stat 30020849A
Navien high limit stat, part number 30020849A, for NPE-AWE and NPE-SWE series appliances.
At a glance
- Appliance family: NPE-AWE and NPE-SWE series
£4.64
£3.87 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 high limit stat is a safety temperature control device fitted to Navien NPE-AWE and NPE-SWE series boiler appliances. It monitors appliance temperature and interrupts the firing sequence if the limit is exceeded, protecting the heat exchanger and associated components from overheating. This item is supplied under Navien part number 30020849A.
Signs this part needs replacing
- Appliance locks out or shuts down during or shortly after firing
- Repeated overheat trips that cannot be cleared by a normal reset
- No firing sequence, with the limit stat failing to close the safety circuit
- Intermittent shutdowns that do not correspond to any other fault condition
- Limit stat showing signs of heat damage, corrosion or a loose or broken connection
Before you order
- Confirm the appliance model matches one of the NPE-AWE or NPE-SWE variants listed above
- Check the existing limit stat part number against 30020849A before removal
- Verify the fault is traced to the limit stat and not to a blocked heat exchanger, poor flow or a separate sensor fault
- Isolate the electrical supply and confirm the appliance has cooled before working on the limit stat circuit
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN NPE-AWE CE-24A - (Serial Number 5093) | — | — | — | |
| NAVIEN NPE-AWE CE-24A - (Serial Number 5093) | — | — | — | |
| NAVIEN NPE-AWE CE-32A - (Serial Number 5095) | — | — | — | |
| NAVIEN NPE-AWE CE-32A - (Serial Number 5095) | — | — | — | |
| NAVIEN NPE-SWE CE-24S - (Serial Number 5094) | — | — | — | |
| NAVIEN NPE-SWE CE-24S - (Serial Number 5094) | — | — | — | |
| NAVIEN NPE-SWE CE-32S - (Serial Number 5096) | — | — | — | |
| NAVIEN NPE-SWE CE-32S - (Serial Number 5096) | — | — | — |
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.