Nefit fault code 3Y 215
Fault code 3Y 215 on a Nefit boiler (including TopLine and TrendLine) means: The fan is running too fast. 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 3Y 215 on a Nefit boiler indicates: The fan is running too fast.
Applies to
Nefit TopLine, TrendLine, Aquapower HRC 25 CW4, Aquapower HRC 25 CW4 II, Aquapower HRC 25 CW5, Aquapower HRC 25 CW5 II, Aquapower HRC 30 CW5, Aquapower HRC 30 CW5 II, Aquapower HRC 45 CW6, Aquapower HRC 45 CW6 II.
Fault code 3Y 215 on other Nefit series
The same code does not mean the same thing on every series. Check the rating plate to see which series you have:
- 3Y 215 on ProLine, HRC 24 CW3, HRC 24 CW4, HRC 30 CW5, NxT HRC 24 CW3, NxT HRC 24 CW4: The fan speed is too high.
- 3Y 215 on EcomLine, Elite HRC 24 CW4, Elite HRC 30 CW5: Fan fault: The fan runs too fast.
- 3Y 215 on SmartLine, HRC 24 CW4: Lockout fault: The fan runs too fast.
- 3Y 215 on SmartLine, HR 11, HR 24, HRC 24, HRC 24 CW3: Lockout fault code: the fan runs too fast.
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.
For fault code 3Y 215, the part involved is usually in the category: fan.
This message does not point directly to one faulty part. These are the parts that most often fit this appliance:
- Nefit pressure sensor with click connection for TopLine and ProLine etc. € 74.49
- Nefit automatic air vent € 26.14
- Nefit siphon gasket per 5 pcs for EcomLine and TopLine € 22.22
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 3Y 215 mean?
The fan is running too fast.
How do I fix fault code 3Y 215 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 3Y 215?
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 3Y 215 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 →