BYD battery error code 12
BYD uses code 12 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
- Inverter communication failure
- Likely cause
- The inverter does not communicate properly with the energy storage system.
- What the manual says to do
- Check the inverter connections and settings. If needed, contact your 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 Battery Box Hvb
- Meaning
- Inverter communication failure
- Likely cause
- Inability to establish a communication link with the inverter
- What the manual says to do
- Inspect the connection to the inverter; contact installer if issue persists.
- 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 Hve
- Meaning
- Inverter communication failure
- Likely cause
- Loss of communication with connected inverter
- What the manual says to do
- Ensure connections are secure and contact installer if needed.
- 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
- Inverter communication failure
- Likely cause
- The inverter is not communicating with the battery system.
- What the manual says to do
- Check the inverter connections and settings.
- 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 Hvs
- Meaning
- Inverter communication failure
- Likely cause
- Issue with inverter connection or settings
- What the manual says to do
- Check inverter settings and connections, consult service manual if needed
- 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