Manufacturer Diagnostics Manual
Verified OEM Technical Manual
Sungrow Diagnostics & Fault Manuals
Sungrow commercial string inverters and SH residential 3-phase hybrid inverters with built-in DC arc-fault circuit interrupter (AFCI).
Equipment Models
Hardware families produced by Sungrow
Indexed Error Codes for Sungrow
Machine-verified error code diagnostic walkthroughs
CODE Fault 008
SH10RT-20
High
DC Overvoltage MPPT Transient Surge
Fault 008 indicates that the DC input voltage on one of the MPPT trackers exceeded the hardware safety threshold (typically 1000V DC absolute max) or experienced an abrupt transient spike, triggering an immediate shutdown to protect the internal DC-DC boost stage and power capacitors.
⏱ 30-45 Mins
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