Nefit fault code E 278
Fault code E 278 on a Nefit boiler (including BaseLine and SmartLine) means: UBA 3 or KIM fault. Reset the appliance once. If the code comes back, a part is usually faulty. You can check the water pressure and settings yourself; leave work on gas-carrying parts to a certified gas engineer.
After a safety alert (gas, flue gas, combustion), reset no more than once and call in a certified gas engineer. If you smell gas, call your national gas emergency number or 112 immediately.
Cause
Fault code E 278 on a Nefit boiler indicates: UBA 3 or KIM fault.
Applies to
Nefit BaseLine, SmartLine, HR 11, HRC24/CW3.
Matching parts
Nefit parts are available from Instalpunt; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days.
Parts per Nefit-series: ProLine (NxT) · TrendLine (II) · EcomLine · TopLine.
This message does not point directly to one faulty part. These are the parts that most often fit this appliance:
- Nefit siphon gasket per 5 pcs for EcomLine and TopLine € 22.22
- Nefit retaining spring for heat exchanger 2 pcs old number: 73582S € 9.15
- Nefit fan casing gasket for e.g. SmartLine HRC 24 CW4 7099500 € 9.81
Fix it yourself or call an engineer?
Always consult the manual for your appliance and work safely. If in doubt or if the fault comes back, call in a qualified professional. A question about a part? Write to us at info@instalpunt.nl.
Frequently asked questions
What does Nefit boiler fault code E 278 mean?
UBA 3 or KIM fault.
How do I fix fault code E 278 on a Nefit boiler?
First check the cause described above. Then restart the appliance using the reset button. If the message comes back, a part usually needs replacing or the fault needs to be repaired by a qualified professional.
Which parts do I need for Nefit fault code E 278?
That depends on the exact cause. In the Nefit parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code E 278 myself?
You can reset the appliance and check things like the water pressure or settings yourself. Work on gas-carrying parts must be left to a certified gas engineer.
All Nefit boiler faults and codes at a glance →