Koyoe battery error code Isolation Fault
Koyoe uses code Isolation Fault in more than one product range, and it doesn't always mean the same thing. Check which range your battery belongs to below.
WattMate is not affiliated with Koyoe. This page summarises Koyoe's own published documentation; your installer and Koyoe are the authority on your system. WattMate doesn't repair systems or make site visits.
As documented for Fy
- Meaning
- Fault in inverter isolation; potential grounding issue
- Likely cause
- Improper grounding or connection
- What the manual says to do
- Check ground connections and impedance; ensure effective earthing of inverter.
- Manufacturer's severity
- Critical
Koyoe's documentation says this one needs your installer.
Extracted from Koyoe's published manual. Check it against the manual for your model. Open the source document
As documented for Na
- Meaning
- Isolation issue detected in the inverter.
- Likely cause
- Inverter not effectively grounded, or low insulation between poles.
- What the manual says to do
- Check grounding and insulation levels.
- Manufacturer's severity
- Critical
Koyoe's documentation says this one needs your installer.
Extracted from Koyoe's published manual. Check it against the manual for your model. Open the source document
When to call your installer or the warranty line
Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware. Don't open the inverter or battery case yourself: work inside it is for a licensed electrician.
If you see smoke, scorch marks or smell burning, switch the system off at the AC and PV isolators and call your installer. If anyone is in danger, call 000.
We don't have a warranty line on file for Koyoe yet. See the manufacturer contacts we do hold, or ask your installer.