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Pylontech error codes

Pylontech error code FF

Pylontech uses code FF in more than one product range, and it doesn't always mean the same thing. Check which range your equipment belongs to below.

WattMate is not affiliated with Pylontech. This page summarises Pylontech's own published documentation; your installer and Pylontech are the authority on your system. WattMate doesn't repair systems or make site visits.

As documented for Fh3x

Meaning
WIFI collector communication failure
Likely cause
Abnormal communication between storage system and collector
What the manual says to do
Restart and reconfirm, and contact the manufacturer for confirmation if the fault cannot be solved.
Manufacturer's severity
Warning

Extracted from Pylontech's published manual. Check it against the manual for your model. Open the source document

As documented for Fh3x

Meaning
WIFI collector communication failure
Likely cause
Abnormal communication between storage system and collector
What the manual says to do
Restart and reconfirm, and contact the manufacturer for confirmation if the fault cannot be solved.
Manufacturer's severity
Warning

Extracted from Pylontech'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 Pylontech yet. See the manufacturer contacts we do hold, or ask your installer.

All Pylontech error codesTroubleshooting help for your system
  1. Try the free fixes first

    Most faults are an isolator, a WiFi drop or a known error code. Start with the lookup and guides above.

  2. Then call the people who are responsible for it

    Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware.

    Find the manufacturer's warranty line
  3. If it's near the end of its life, see what replacing it would do

    A free energy audit report sizes a new system for your actual bills and shows what a replacement would do. Your first results need no details; your details only reach installers if you ask for the full report.

    Get your free energy audit report