Deye error code BMS fault
Deye uses code BMS fault 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 Deye. This page summarises Deye's own published documentation; your installer and Deye are the authority on your system. WattMate doesn't repair systems or make site visits.
As documented for Na
- Meaning
- BMS fault detected
- Likely cause
- The cell voltage sampling circuit is faulty or the cell temperature sampling circuit is faulty
- What the manual says to do
- Replace the battery.
- Manufacturer's severity
- Critical
Deye's documentation says this one needs your installer.
Extracted from Deye's published manual. Check it against the manual for your model. Open the source document
As documented for Rw
- Meaning
- Battery Management System fault
- Likely cause
- The cell voltage sampling circuit is faulty; the cell temperature sampling circuit is faulty.
- What the manual says to do
- Replace the battery.
- Manufacturer's severity
- Critical
Deye's documentation says this one needs your installer.
Extracted from Deye's published manual. Check it against the manual for your model. Open the source document
As documented for Ai Series
- Meaning
- BMS fault detected
- Likely cause
- Cell voltage or temperature sampling circuit is faulty
- What the manual says to do
- Replace the battery.
- Manufacturer's severity
- Critical
Deye's documentation says this one needs your installer.
Extracted from Deye's published manual. Check it against the manual for your model. Open the source document
As documented for Hybrid Inverter
- Meaning
- BMS fault indicates issues with the battery management system.
- Likely cause
- The cell voltage sampling circuit is faulty, the temperature sampling circuit is faulty, or the welding point for cell voltage sampling is loose or disconnected.
- What the manual says to do
- Replace the battery.
- Manufacturer's severity
- Critical
Deye's documentation says this one needs your installer.
Extracted from Deye'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.
- Deye warranty phone
- (02) 8529 6809
- Deye warranty email
- service_au@deye.com.cn
- Deye service network
- Open the manufacturer's service page