Sungrow inverter error code 28
Sungrow uses code 28 in more than one product range, and it doesn't always mean the same thing. Check which range your inverter belongs to below.
WattMate is not affiliated with Sungrow. This page summarises Sungrow's own published documentation; your installer and Sungrow are the authority on your system. WattMate doesn't repair systems or make site visits.
As documented for Cx
- Meaning
- PV Reserve Connection Fault
- Likely cause
- The corresponding string has reverse polarity.
- What the manual says to do
- The manual's steps for this code are for your installer.
- Manufacturer's severity
- Critical
Sungrow's documentation says this one needs your installer.
Extracted from Sungrow's published manual. Check it against the manual for your model. Open the source document
As documented for Residential
- Meaning
- PV Reserve Connection Fault
- Likely cause
- Reverse polarity in string
- What the manual says to do
- The manual's steps for this code are for your installer.
- Manufacturer's severity
- Critical
Sungrow's documentation says this one needs your installer.
Extracted from Sungrow'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.
- Sungrow warranty phone
- 1800 786 476
- Sungrow warranty email
- service@sungrowpower.com.au
- Sungrow service network
- Open the manufacturer's service page