BYD battery error code 9
BYD uses code 9 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 BYD. This page summarises BYD's own published documentation; your installer and BYD are the authority on your system. WattMate doesn't repair systems or make site visits.
As documented for Battery Box
- Meaning
- BIC balancing failed
- Likely cause
- Failed balancing operation on Battery Information Collector.
- What the manual says to do
- Request assistance from a qualified installer.
- Manufacturer's severity
- Critical
BYD's documentation says this one needs your installer.
Extracted from BYD's published manual. Check it against the manual for your model. Open the source document
As documented for Hvm
- Meaning
- BIC balancing failed
- Likely cause
- Balancing operation of battery cells was unsuccessful.
- What the manual says to do
- Contact authorized service personnel for assistance.
- Manufacturer's severity
- Critical
BYD's documentation says this one needs your installer.
Extracted from BYD's published manual. Check it against the manual for your model. Open the source document
As documented for Battery Box Hvb
- Meaning
- BIC balancing failed
- Likely cause
- Balancing issue detected in the BIC
- What the manual says to do
- Check BIC and battery balancing status; contact installer if necessary.
- Manufacturer's severity
- Warning
Extracted from BYD's published manual. Check it against the manual for your model. Open the source document
As documented for Hve
- Meaning
- BIC balancing failed
- Likely cause
- Failure in battery balancing functionality
- What the manual says to do
- Restart the battery system; contact installer if issues persist.
- Manufacturer's severity
- Warning
BYD's documentation says this one needs your installer.
Extracted from BYD's published manual. Check it against the manual for your model. Open the source document
As documented for Hvs
- Meaning
- BIC balancing failed
- Likely cause
- Balancing circuit in battery information collector malfunctioning
- What the manual says to do
- Monitor battery status and contact installer if issue persists
- Manufacturer's severity
- Warning
Extracted from BYD'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.
- BYD warranty phone
- +61 2 8005 6688
- BYD warranty email
- service@alpspower.com.au
- BYD service network
- Open the manufacturer's service page